I have definitely heard Steve Roach before, but not that particular compilation. I'll check it out, I definitely haven't heard of Vir Unis, Stephen Bacchus, or Vidna Obmana so it looks pretty cool.
I never realized how much stuff Steve Roach put out until both his and Projekt's bandcamps started uploading his back catalog and a good portion of my RSS feed was Steve Roach every time I refreshed it for months. Dude is prolific.
I believe he's still a couple dozen albums behind Muslimgauze, despite the fact that Bryn Jones has been dead for pushing 20 years. That said, I once wrote an entire script, listening to nothing but Steve Roach, without a repeat. I can do the same with FSOL, but I have to rely on the radio shows.
FSOL is definitely something you can put on and leave on for days on shuffle. I also like putting on Luke Vibert for that. I don't even have all of his albums, but I do have 42 of them... Much stranger music for sure, but not really "healing". Worth mentioning anyway.