me too and I don’t have this weird problem. The poutput to pamac list | grep zoom on my system is:
zoom 5.7.1-1 AUR 203.2 MB
Please read this:
More specifically this bit:
Snaps and flatpacks are easier for the developer to create but they have their disadvantages so with the AUR available to us, that should be your first port of call after the community packages.
