Here’s a link to the thread for students waitlisted by davis in case you haven’t seen it (where many other people are currently expressing their thoughts): http://talk.collegeconfidential.com/university-california-davis/1987946-uc-davis-waitlist-2021-p4.html
Waitlisted people heard back a couple weeks ago in a largeish first wave and small second wave, but it looks like they haven’t taken too many people off.
UC Davis does this every year (in terms of not following the deadline).
The deadline is most likely unofficially extended, and they most likely won’t tell us the new date, but will just notify us within another month, with a few acceptances and the rejections. It sucks.