Really depends on the location.
When staying in Europe, i never had crazy fees or todos when leaving.
Booking is sometimes a bit cheaper, but next stay is agaon booked via Airbnb thanks to an offer on a listing i wanted.

The site is not really allowed to bother you with the cookie popup either.
If you clicked whatever, the site has to make sure your choice is kept for a reasonable time.
Asking again can be seen as trying to force you to allow more cookies, just so the popup doesnt appear again.
That choice wouldnt be freely given and thus not valid as thats required by the regulation.

You shouldnt be actually able to refuse necessary cookies as the site needs to function even if you click ‘decline all’ by law.
If a site does break, report it to the supervisory authority of your country.
If you are in the US… hahahahah.