This question already has an answer here:
I would like to use an external keyboard, mouse, monitor, etc and have my MacBook closed. The only issue is that I can no longer access the fingerprint scanner. Is there a way to use an external one? FYI, I have installed Unlox which is very useful but doesn't cover all cases where a fingerprint can be used.
Yes, I read the similar question but thought this one was different since that one referenced a 10-yr old Macbook that didn't have the Touchbar. And there are ways to solve the problem in that question.