TouchID does not lock MacBook Pro anymore on macOS Big Sur 11.2
This is apparently a somewhat common issue after upgrading to Big Sur or even the 11.1 -&gt; 11.2 upgrade.
You need to do a SMC and possibly a PRAM reset.
I was able to clear it by powering off the MacBook Pro, holding down the power button on the touch bar for &gt;10 seconds, and then power back on.
Hope that works for you.