I think that these are things that contribute to linux surviving as a musicians platform.
U-he's amazing linux ports. World-class just can't be underestimated
Surge excellent cross-platform resurgence, demontrating open-source teamwork
AirWindows, demonstrating homegrown cross-platorm genious in friendly videos
Vital and Odin2, simply excellent synths
Pianobook and DecentSampler for providing real instrument sounds
Yoshimi synth for constantly improving amidst it's 16 layers
Guitarix and Rakarrack to wonderfully effect sound
Hydrogen drum machine, continuing to be an easy and powerful way to
pound out the sound
linVst and yabridge plugin wrappers, and wine-staging, that allow bringing most windows plugins across the great divide.
Reaper, Bitwig, and Harrison for making commercial linux daws
AVLinux, Ubuntu Studio, and the Arch Linux Manjaro-with-AUR distros,
providing premade and well supported linux systems (among others.)
The kernel maintainers, who have integrated patches making well behaved linux audio
possible in mainstream distributions, with just a few easy config choices.
Personally, I learn a lot from users at
https://linuxmusicians.com/
https://forum.cockos.com/forumdisplay.php?f=52