This is obviously really bad for people who use Twitter for business, journalism, etc. and want to be contacted by anyone. Also, a really shady move since apparently it hasn't been publicly announced.
More importantly, switching the setting back to "allow all users" seems not to work that well for me, since I changed the settings last night and it's back to "only from verified accounts" as of this morning, I hope this is an unintentional bug, however I've seen reports of that happening to other users as well.
Some sources:
https://twitter.com/GergelyOrosz/status/1680156192876756992
https://twitter.com/snafuqd/status/1680037620041039873
https://twitter.com/halomancer1/status/1680039297637040129