Does anyone know if non-Steam games added to Steam are succeptible to screwups from the update?
I would assume not since Steam just manages the link and has an overlay running over the game, but I thought I'd ask to make sure.
I use Steam to manage all games (and some applications) on my PC, and don't want to risk breaking anything.
You're right, all it manages is the link. If it happens to break something just re-add the link. For what its worth though, I have a a bunch of non-steam apps in Steam and they haven't been affected as far as I can tell.