[FireBeyond]

They have done shit like target weight loss drugs at teenage girls who have posted and then quickly deleted selfies (i.e. using that as one analogue for "self-confidence issues").

Meta has also decided "functionality needs to be provided though we have explicit confirmation from the (Burmese) government that they're going to use it against dissidents" which has historically included imprisonment and torture, so...

Plenty of concrete harms.