I have been in a curious state of limbo with Libfuse3-3 for a couple of weeks now. The issue is as follows:
When I run an update/upgrade/autoremove through the terminal as I typically do, it prompts me to remove Libfuse3-3, to which I accept (-y).
Immediately afterwards, Software Updater pops up and says this:
Once again installing the Libfuse3-3 that the terminal will then ask me to remove!
(bonus issue: that "Desktop integration portal for Flatpak and Snap" which always appears in the Updater without letting me check it)
This is a confusing one.
Fuse3 supercedes Fuse.
Fuse is what comes with Zorin OS.
xdg-desktop-portal package update depends on Fuse3, thereby insisting it be installed in order to upgrade
This necessitates removing the existing Fuse Package.
Fuse3 can be safely installed and the packages that rely on Fuse can also use Fuse3.
So, you can install or upgrade xdg-desktop-portal and fuse3 safely:
sudo apt install xdg-desktop-portal -y
But It is unsafe to then try removing the Fuse Packages since the Zorin OS Desktop Environment depends on Fuse.
So install/upgrade - and then leave it safely as it is...
Or, Ignore the prompt to Upgrade xdg-desktop-portal...
sudo apt-mark hold xdg-desktop-portal to hold the package at current version and stop the nagging prompts.
I installed xdg-desktop-portal -y, blessed peace covers me
I have just done the same, as have been playing libfuse3-3 ping-pong as described in OP. I will now see how that pans out.