Briefly,
I install Zorin OS Core as a VM under Proxmox. I get the machine up and running and the first thing I do is update the OS.
Then I test a critical requirement: Can Files browse my LAN and show me LAN devices. This does not work. Files lists nothing.
Then I spent hours with ChatGPT or SuperGrok trying to get network browsing to work to no avail. Around 3 hours into the ChatGPT or SuperGrok session, I start covering ground I've already covered. Nothing works.
This is the same experience I've had with Linux Mint and Ubuntu Desktop, all under Proxmox as a VM.
In all cases browsing the network from the terminal window works, but Files > Other Places (Networks) shows nothing:
michael@michael-Standard-PC-Q35-ICH9-2009:~$ avahi-browse -a
+ enp6s18 IPv6 eero                                          _eero._tcp           local
+ enp6s18 IPv6 eero #2                                       _eero._tcp           local
+ enp6s18 IPv4 eero                                          _eero._tcp           local
+ enp6s18 IPv4 eero #2                                       _eero._tcp           local
+ enp6s18 IPv6 dbeeb3e8a3f65b09                              _trel._udp           local
+ enp6s18 IPv6 bfc17f100dbeccbd                              _trel._udp           local
+ enp6s18 IPv6 83fff20e3feeb4ba                              _trel._udp           local
+ enp6s18 IPv4 dbeeb3e8a3f65b09                              _trel._udp           local
+ enp6s18 IPv4 bfc17f100dbeccbd                              _trel._udp           local
+ enp6s18 IPv4 83fff20e3feeb4ba                              _trel._udp           local
+ enp6s18 IPv6 eero_thread #5B09                             _meshcop._udp        local
+ enp6s18 IPv6 eero_thread #B4BA                             _meshcop._udp        local
+ enp6s18 IPv6 eero_thread #CCBD                             _meshcop._udp        local
+ enp6s18 IPv4 eero_thread #5B09                             _meshcop._udp        local
+ enp6s18 IPv4 eero_thread #B4BA                             _meshcop._udp        local
+ enp6s18 IPv4 eero_thread #CCBD                             _meshcop._udp        local
+ enp6s18 IPv6 eero                                          _eerogw._tcp         local
+ enp6s18 IPv4 eero                                          _eerogw._tcp         local
+ enp6s18 IPv6 Michael___s iMac Pro                          Apple Net Assistant  local
+ enp6s18 IPv4 Michael___s iMac Pro                          Apple Net Assistant  local
+ enp6s18 IPv6 Michael___s iMac Pro                          VNC Remote Access    local
+ enp6s18 IPv4 Michael___s iMac Pro                          VNC Remote Access    local
+ enp6s18 IPv6 Denon AVR-X3700H                              _qobuz-connect._tcp  local
+ enp6s18 IPv4 Denon AVR-X3700H                              _qobuz-connect._tcp  local
+ enp6s18 IPv6 Denon AVR-X3700H                              _heos-audio._tcp     local
+ enp6s18 IPv4 Denon AVR-X3700H                              _heos-audio._tcp     local
+ enp6s18 IPv6 Denon AVR-X3700H-f86a24134e5bee4d7290da0f6f9ce2f4 _tidalconnect._tcp   local
+ enp6s18 IPv4 Denon AVR-X3700H-f86a24134e5bee4d7290da0f6f9ce2f4 _tidalconnect._tcp   local
+ enp6s18 IPv6 SHIELD                                        _androidtvremote2._tcp local
+ enp6s18 IPv4 SHIELD                                        _androidtvremote2._tcp local
+ enp6s18 IPv6 SHIELD                                        _nv_shield_remote._tcp local
+ enp6s18 IPv4 SHIELD                                        _nv_shield_remote._tcp local
+ enp6s18 IPv6 Brother MFC-L3780CDW series                   _uscans._tcp         local
+ enp6s18 IPv4 Brother MFC-L3780CDW series                   _uscans._tcp         local
+ enp6s18 IPv6 Brother MFC-L3780CDW series                   _uscan._tcp          local
+ enp6s18 IPv4 Brother MFC-L3780CDW series                   _uscan._tcp          local
+ enp6s18 IPv4 Canon MF450 Series                            _uscan._tcp          local
+ enp6s18 IPv6 Brother MFC-L3780CDW series                   Web Site             local
+ enp6s18 IPv6 Denon AVR-X3700H                              Web Site             local
+ enp6s18 IPv4 Canon MF450 Series                            Web Site             local
+ enp6s18 IPv4 Brother MFC-L3780CDW series                   Web Site             local
+ enp6s18 IPv4 Denon AVR-X3700H                              Web Site             local
+ enp6s18 IPv6 Brother MFC-L3780CDW series                   _scanner._tcp        local
+ enp6s18 IPv4 Brother MFC-L3780CDW series                   _scanner._tcp        local
+ enp6s18 IPv4 Canon MF450 Series                            _scanner._tcp        local
+ enp6s18 IPv6 Brother MFC-L3780CDW series                   _ipp-tls._tcp        local
+ enp6s18 IPv4 Brother MFC-L3780CDW series                   _ipp-tls._tcp        local
+ enp6s18 IPv6 Brother MFC-L3780CDW series                   Secure Internet Printer local
+ enp6s18 IPv4 Canon MF450 Series                            Secure Internet Printer local
+ enp6s18 IPv4 Brother MFC-L3780CDW series                   Secure Internet Printer local
+ enp6s18 IPv6 Brother MFC-L3780CDW series                   Internet Printer     local
+ enp6s18 IPv4 Canon MF450 Series                            Internet Printer     local
+ enp6s18 IPv4 Brother MFC-L3780CDW series                   Internet Printer     local
+ enp6s18 IPv6 Brother MFC-L3780CDW series                   UNIX Printer         local
+ enp6s18 IPv4 Canon MF450 Series                            UNIX Printer         local
+ enp6s18 IPv4 Brother MFC-L3780CDW series                   UNIX Printer         local
+ enp6s18 IPv6 Brother MFC-L3780CDW series                   PDL Printer          local
+ enp6s18 IPv4 Brother MFC-L3780CDW series                   PDL Printer          local
+ enp6s18 IPv4 Canon MF450 Series                            PDL Printer          local
+ enp6s18 IPv6 2dcff321-ffb3-746d-17d2-3e14bcbf6cbb          _googlezone._tcp     local
+ enp6s18 IPv4 2dcff321-ffb3-746d-17d2-3e14bcbf6cbb          _googlezone._tcp     local
+ enp6s18 IPv6 SHIELD-Android-TV-2dcff321ffb3746d17d23e14bcbf6cbb _googlecast._tcp     local
+ enp6s18 IPv4 SHIELD-Android-TV-2dcff321ffb3746d17d23e14bcbf6cbb _googlecast._tcp     local
+ enp6s18 IPv6 MICHAEL-STANDARD-PC-Q35-ICH9-2009             Device Info          local
+ enp6s18 IPv4 MICHAEL-STANDARD-PC-Q35-ICH9-2009             Device Info          local
+     lo IPv4 MICHAEL-STANDARD-PC-Q35-ICH9-2009             Device Info          local
+ enp6s18 IPv6 MICHAEL-STANDARD-PC-Q35-ICH9-2009             Microsoft Windows Network local
+ enp6s18 IPv4 MICHAEL-STANDARD-PC-Q35-ICH9-2009             Microsoft Windows Network local
+     lo IPv4 MICHAEL-STANDARD-PC-Q35-ICH9-2009             Microsoft Windows Network local
+ enp6s18 IPv6 70-35-60-63.1 Outdoors                        _sleep-proxy._udp    local
+ enp6s18 IPv4 70-35-60-63.1 Outdoors                        _sleep-proxy._udp    local
+ enp6s18 IPv6 6C4A853F5910@Outdoors                         AirTunes Remote Audio local
+ enp6s18 IPv6 0006784BFF92@Denon AVR-X3700H                 AirTunes Remote Audio local
+ enp6s18 IPv6 8EE8C1AD7A19@Living Room (20863)              AirTunes Remote Audio local
+ enp6s18 IPv4 6C4A853F5910@Outdoors                         AirTunes Remote Audio local
+ enp6s18 IPv4 0006784BFF92@Denon AVR-X3700H                 AirTunes Remote Audio local
+ enp6s18 IPv4 8EE8C1AD7A19@Living Room (20863)              AirTunes Remote Audio local
+ enp6s18 IPv6 Living Room (20863)                           _companion-link._tcp local
+ enp6s18 IPv6 Outdoors                                      _companion-link._tcp local
+ enp6s18 IPv4 Living Room (20863)                           _companion-link._tcp local
+ enp6s18 IPv4 Outdoors                                      _companion-link._tcp local
+ enp6s18 IPv6 Living Room (20863)                           AirPlay Remote Video local
+ enp6s18 IPv6 Outdoors                                      AirPlay Remote Video local
+ enp6s18 IPv6 Denon AVR-X3700H                              AirPlay Remote Video local
+ enp6s18 IPv6 Roku Express 4K                               AirPlay Remote Video local
+ enp6s18 IPv4 Living Room (20863)                           AirPlay Remote Video local
+ enp6s18 IPv4 Outdoors                                      AirPlay Remote Video local
+ enp6s18 IPv4 Denon AVR-X3700H                              AirPlay Remote Video local
+ enp6s18 IPv4 Roku Express 4K                               AirPlay Remote Video local
+ enp6s18 IPv6 0006784bff92Denon AVR-X3700H                  _spotify-connect._tcp local
+ enp6s18 IPv6 267500ce-d9c8-5425-9575-08b864272c5e          _spotify-connect._tcp local
+ enp6s18 IPv4 0006784bff92Denon AVR-X3700H                  _spotify-connect._tcp local
+ enp6s18 IPv4 267500ce-d9c8-5425-9575-08b864272c5e          _spotify-connect._tcp local
+ enp6s18 IPv4 807529621                                     _teamviewer._tcp     local
^CGot SIGINT, quitting.
michael@michael-Standard-PC-Q35-ICH9-2009:~$