Like the day your security services interrogator tells you to get it back.
You joke, but accidental deletion of critical information is more common than desired deletion of sensitive information, which is exactly why services have soft deletion: most users want it.
Softdelete - its a very popular concept.
you are 100% correct. one day i found my 5 months old comments on youtube, which i deleted. i expect someone had restored a backup due to some kind of failure. so yeah, 100% breach of GDPR right there. but an individual, that is the product here, cannot do shit about it, that's just a illusion. only government have the power to actually fix this mess.