I searched on "Facebook jail" and found a number of sites unknown to me with remarks on the subject. And scrolled down far enough to find something from the Wall Street Journal. Inside ‘Facebook Jail’: The Secret Rules That Put Users in the Doghouse
The site’s Oversight Board is expected to rule on Donald Trump’s case Wednesday. Breaking Facebook’s rules can mean removed posts and blocked privileges, but a vast number of guidelines aren’t made public.

This is from a year ago shortly after they apparently first formed the "Oversight board" (in October, 2021).

In Facebook Jail, many users are serving time for infractions they don’t understand.

Colton Oakley was restricted after ranting about student debt. The recent graduate of the State University of New York at New Paltz posted that anyone who was mad about loan cancellation was “sad and selfish.” His sentence: three days without posting on Facebook.

Alex Gendler, a freelance writer in Brooklyn, N.Y., got a similar ban after sharing a link to a story in Smithsonian magazine about tribal New Guinea. Nick Barksdale, a history teacher in Oklahoma, served 30 days recently after jokingly telling a friend “man, you’re spewing crazy now!”

None of the three quite understand what they did wrong.

“If you use the term ‘crazy,’ does that automatically get you banned?” asked Mr. Barksdale.

The plight of baffled users caught in Facebook’s impenetrable system for adjudicating content has reinforced the company’s reputation for heavy-handed and inept policing of its online platforms. The problem, which has been mounting for years, is increasingly acute as lawmakers and the public focus on the vast power social-media companies hold over the flow of information.

There's more at the rest of the article.

This site offers three tips about how to get out of Facebook Jail.

"By the time you’re done reading this post, you’ll know how to get in Facebook Jail and how to get out of Facebook Jail. It’s not as scary as it sounds – in fact, there are several approaches to that, so you can return to connecting with friends, using the preventive Facebook cheating app, or just watching memes and videos in your feed."

No idea where this is going, it's fairly long, but maybe it will help.