This doesn't work like everyone makes it out to. The first problem is overcoming the plethora of build errors. Then if you're lucky enough to actually get Ableton launched and working, you'll run into weird issues like Ableton crashing as soon as you attempt to add a MIDI track. When you find a work-around for that, you then run into random crashing in the middle of playback with absolutely atrocious latency despite the claims of "low latency". It's not worth it. I gave up

It does work and no you don’t need to fiddle with build errors and crap unless you have some weird hardware.

It works for me plug n play with my scarlett devices. Many tracks.

Core i9, RTX 3080, Fedora w/ Proton on Vulkan. USB-C Scarlett.

I think your issue might be that you aren’t using an ALSA device.