No, it explicitly does not work that way. If you share a game to another family member, and that family member plays that game, you are not allowed to play any other game at all on steam.
“A Steam library can only be used by one user at a time to play one game at a time. The same is true if that library is being accessed by another user via Family Sharing.”
I buy all my games on Epic Games Launcher becomes it has less DRM than steam. If you have kids, they can’t play 2 completely different games on two different computers.
It’s like your kid not being able to play Mario kart on her switch because her brother is playing Halo on Xbox in another room. Steam doesn’t support that. Epic games doesn’t have a problem with you having 2 different games being played on 2 different computers, so I buy my games there whenever I have the choice because it’s the more consumer-friendly platform.
No, it explicitly does not work that way. If you share a game to another family member, and that family member plays that game, you are not allowed to play any other game at all on steam.
“A Steam library can only be used by one user at a time to play one game at a time. The same is true if that library is being accessed by another user via Family Sharing.”
https://help.steampowered.com/en/faqs/view/57A7-503C-991F-E9A8#:~:text=A Steam library can only,another user via Family Sharing.&text=Rate limit exceeded-,A Steam account may authorize Family Library Sharing on up,in a 90 day period.