This is an announcement that as of Linux kernel 5.14, digidesign 002/003 will work well with ALSA driver snd-firewire-digi00x.
In 2012, Robin and I figured out how the digi00x series of cards worked and a linux driver was born. Unfortunately, it still had some bugs until a few weeks ago; Takashi S. has now fixed the clicks and pops with the digi00x series. As far as I can tell, the driver works flawlessly now: