The GTK file picker Firefox wants to use by default is meh. I'm not sure why it doesn't use the one provided by the OS when it's just one about:config tweak away. Change widget.use-xdg-desktop-portal.file-picker from 2 to 1 and you get the much, much better KDE file picker. Assuming you're using @kde of course.
It's been a problem for ages on multiple operating systems, not a new thing. At least now you don't have to set environment variables and change startup scripts.
@killyourfm
Seems like you have a solution which is great, but also, did you know "ujust setup-virtualization" is a thing?
It's not easily discoverable and I don't remember where I even found out about it but it works great to get a vm environment to use with virt-manager
Ten years ago, if someone had told me that tech policy bloggers would be calling for ICE to be abolished, I would have thought it very unlikely.
"Abolish ICE" is an increasingly mainstream and extremely correct position.
Jim P.
James Huff 
Danielle Foré
now it's veronicaexplains.net
evacide