

afaik “lockdown mode” shortcut is a basic feature in android. it quickly disables fingerprint/face/etc unlock, temporarily.
it should still be present in some form in most versions of android since several years ago.
if you can’t find it in your power button long press menu, check the Lineage documentation.
btw powering off the device should also force password/pin unlock on the next boot.
by moving to a different employer, i guess.
did you mean by betraying coworkers? maybe some people like that idea. I’m strongly against it.
either way, i would avoid such a company.