8.0 update My Flip 4 keeps turn off when not in use. Have to turn it on every time. Anybody have the same issue.

[Tourbillon De La Vie]

As in shutdown? Does it happen in safe mode too
https://www.samsung.com/uk/support/mobile-devices/how-to-start-my-galaxy-device-in-safe-mode/

If yes, make sure you have a backup and start thinking about finding a suitable replacement