SteamOS 3.6 is live on the “main” update channel, and it is very buggy. (Note: the most bleeding edge update channel is called main. 3.6 is only live on the “main” channel, not any of the stable or beta channels).
I had switched to main to get 3.5 early, and 3.5 had spent so much time in the main channel that it’s been very stable for the last few months. However 3.6 has been rough, game mode would crash and restart everytime a decky plugin did something, and it broke my desktop mode completely. I’ve downgraded to beta-candidate (which is still 3.5) and things are much better.
I know that staying off the most bleeding edge update channels if you want a stable experience is common sense, but I think a lot of people got impatient for 3.5 and may have been lulled into a false sense of security by how stable the 3.5 main update builds were recently.
And I even feel like 3.5 isn’t entirely as stable as it should be. Got some random crashes. Although it’s not nearly as bad as it was a few months ago. So I will stay on beta for now.
Edit: Went back to stable yesterday because of too many crashes. Funnily enough it crashed on my first attempt to downgrade. The second attempt worked, though.