Installed packages have unmet dependencies

[hey]

Hi, I got this message from the taskbar

I had added 3 ppa's by the time this first appeared, Kazam, QBitTorrent, Brave-browser.
I have done the solutions from this AskUbuntu post.

Gist of commands tried

sudo apt-get clean

sudo apt-get autoclean

sudo dpkg --configure -a
sudo apt-get -f install

No apps were reported broken in the terminal and no packages were upgraded.

Update: Maybe packages aren't broken but apt cannot read a certain file causing the issues

~$ apt-mark showhold 
E: can not open /var/lib/apt/lists/in.archive.ubuntu.com_ubuntu_dists_focal-updates_InRelease - fopen (13: Permission denied)
E: The package lists or status file could not be parsed or opened.

[Aravisian]

It looks like a partial upgrade happened, corrupting the list.
Try:

sudo -i

rm /var/lib/apt/lists/partial/*

exit

sudo apt update

[hey]

I got

~# rm /var/lib/apt/lists/partial/*
rm: cannot remove '/var/lib/apt/lists/partial/*': No such file or directory

But I have not yet had the notification in last 2 boots. Is it possible that it resolved itself ? Seems unlikely but a new run apt-mark showhold showed no errors

[Aravisian]

It may be that the partial upgraded has since completed. Keep an eye on it and please mention if it reasserts.