I just bought a new phone (2025 Galaxy A16, so no root method that I know of yet) and was surprised to see they actually let you just uninstall the Facebook app normally in the Apps menu now. No adb permission shenanigans required, at least on the unlocked retail model.
(I'm an old fuck and I don't play the new-phone-every-year game. So this probably isn't new. But it was still nice to be fully rid of it.)