 Just realized facebook added an unsend feature for messenger that no longer requires a 10 minute deadline. They do say unsent messages can be reported up to 14 days after being unsent, but do they delete after this time or does it just hang around their servers until someone inadvertently hacks them. This has previously been an issue around a year ago, where Instagram was reported to not have deleted "deleted messages and photos" from their servers for over a year.At this point the only thing keeping me from deleting my facebook is that I want to purge everything, including messages but wondering if it's just a wink wink we'll be deleting them not really, kind of deal. Are there any GDPR rights that let me check if they do?