This one is based in security standards :( https://security.stackexchange.com/questions/45455/which-security-standards-define-the-time-of-inactivity-before-lock

This one is based in security standards :( https://security.stackexchange.com/questions/45455/which-security-standards-define-the-time-of-inactivity-before-locking-the-screen https://security.stackexchange.com/questions/45455/which-sec... (link talks about screen locking but similar vibe for app logout for various certification bodies)