I use Bitwarden also at my work. For reasons of comfort, I need to stay logged in for 8-9 hours. I also need to restart my browser several times a day, therefore none of the available lock options is suitable for me.
+1 on this. I like the idea of logging in once a week, every 2 weeks, every month, etc.
I know this suggestion would only apply to Premium users, but for me it would be slick and safe if hitting my U2F key could be used as the desktop unlock code. In my mind; I would click on the BW extension and a screen would flag asking me to tap the Yubikey followed by being immediately unlocked. This would ONLY be for unlocking and NOT for logging in, where the master password would still be required.
Please check here.