It’s really convenient to use mobile device to login with a button press, but when web vault locks itself after a timeout, I need to enter master password and it’s actually quicker to do an actual logout then login with device
can something be done about it?
This is not a Vaultwarden issue, be rather how the upstream Bitwarden handles the login with device currently.
I recommend going to the official Bitwarden community forums.
You can configure the web-vault to logout instead of lock in you account settings.