I always use my fingerprint to open my phone (Pixel 7a) but it asks for my PIN regularly. I would like to be able to turn this off because it is in fact much less secure for me. It always happens when I'm out and about and surrounded by people.
I've tried shielding the numberpad with my other hand, but it registers as entering something which doesn't work at all. I can't let my hand float above the screen and type my numbers with the other one, it just doesn't work for me. My numberpad is scrambled, but I just don't want anyone to see what I'm doing.
I also don't want to use a privacy screen because that doesn't work with the fingerprint scanner and cutting a whole in it looks awful.
So I simply would request that I can turn off this 'added security required'. I haven't found the option so far.