I have the Bitwarden app running in Forefox. I have the Bitwarden desktop app running on Debian Linux. My BitwardenRS docker container is running on my local server.
Signing into the server via the web browser, in settings and options is Vault Timeout. By default it is set to 15 minutes. I change it to Browser Refresh but it doesn’t stay. If I close the tab and reopen the vault from the browser again, it will default back to 15 Minutes. As long as I leave the tab open, the setting will remain.
None of the other apps change their settings.