Half of these exist because I was bored once.
The Windows 10 and MacOS ones are GPU passthrough enabled and what I occasionally use if I have to use a Windows or Mac application. Windows 7 is also GPU enabled, but is more a nostalgia thing than anything.
I think my PopOS VM was originally installed for fun, but I used it along with my Arch Linux, Debian 12 and Testing (I run Testing on host, but I wanted a fresh environment and was too lazy to spin up a Docker or chroot), Ubuntu 23.10 and Fedora to test various software builds and bugs, as I don't like touching normal Ubuntu unless I must.
The Windows Server 2022 one is one I recently spun up to mess with Windows Docker Containers (I have to port an app to Windows, and was looking at that for CI). That all become moot when I found out Github's CI doesn't support Windows Docker containers despite supporting Windows runners (The organization I'm doing it for uses Github, so I have to use it).
Its my only computer. I couldn't go back to anything else. Every time I double click Firefox, it opens a new VM. When I close Firefox, the VM is destroyed.
Email is in a separate VM. Email attachments also open in a disposable VM. USB devices are quarantined unless I connect them to a specific VM. Its a game changer.
Cons: I need as much ram as I used to need when I ran Windows. Watching videos is a bit choppy at full screen sometimes. And I can't play any video games.
Sounds like some pretty serious cons
Out of curiosity why do you like qubes? Having everything in a VM doesn't sound that great to me
I get that the main concern of it is security but what do you do that it demands that level of hardening? I've only ever got one virus in my life that I know of as it is and that was on windows
Not op but I do a lot of architecture and infrastructure work on top of my normal dev work so keeping everything separated and per-client has become a pretty important advantage for me personally
Yep that I imagine is one of the main intended use cases, in my case would probably be overkill though