what would be the correct timeout for logging out a session, vs lawyerised evolution of same

What is a good timeout for authenticated sessions including for online banking?  Around a working day.  Not 10 minutes.  Oh, never mind, I've written about this in "your session has expired: the sorry state of web session timeouts", and don't really have anything to add.

[0] <https://wibblement.blogspot.com/2021/12/your-session-has-expired-sorry-state-of.html>

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