No. I’m the sole user. Anyone borrowing it just uses my profile.

Did I claim any and all features work out in the woods?

Profile switching on steam currently logs you out, and then into the other account. There’s no login retention of every user that’s set up, so switching between users obviously won’t work while offline. Maybe it could, but not the way it works rights now.

This is like asking me if I’d tried logging in while offline. The answer is no.