I think it is systemd based?
Also works for me. Been using PipeWire as my audio server for over a year while doing music production and happy with it
That’s exactly the reason I use it. I like firefox but wish it was more secure/private out of the box which is exactly what librewolf is. Saves me time
If you need all the online features you can run gog galaxy through wine, however I just use heroic launcher instead. And you can add any executable to steam, if I’m not mistaken I think heroic has a setting to do it automatically