As others have said, Jitsi is a for many meetings a good FOSS alternative. And if that does not work, use Zoom in the browser.
It's a pick your poison type of situation I think. I personally run FOSS where I can, and compartmentalize the environment where I can't but I still want the benefits.
But for personal use- totally makes sense
A desktop operating system that comes with a proper security and permission model (i.e. not a standard Linux system). Right now, QubesOS seems like the only candidate here.
I can't believe Android and iOS are now >=15 years old and Linux is still struggling with this.
I can close it and know it is closed.
The primary cause of this problem is the conventional desktop OS which has no meaningful security model.
IOS and Android have the correct approach to mitigate this, strong sandboxing and mandatory access control.
GNU/Linux phones bring these problems to mobile, which considering how much of our lives are on these devices, is an absolute disaster.
The only way to meaningfully secure a GNU/Linux desktop is to run multiple instances of it through a type-1 hypervisor.
For a mobile device, a user prioritizing privacy, security and FOSS would be much better served by GrapheneOS.