As an elder gen Z I can assure you that the list of banned things in my class circa 2015 was somehow worse. Just off the top of my head.

SpongeBob laugh

WW2 Propaganda (Just cause it's historical doesn't make it not pornography vaultdweller013)

Any discussion of the killdozer

Bulldozer noises

Tank noises (You will all make annoying lawyers)

Kazoos are not longer allowed

Compressed air canisters are banned especially if you have a whistle and duck tape

Arma is not allowed to be watched on computer property

Soviet national anthem

Russian national anthem

State anthem of Mississippi

Djibouti National anthem

Sakkinarven Polka

Those are just the ones I remember, I am the direct source of at least half of them.