I can’t answer all of your questions, but having deleted one account, and having one being banned, I can tell you this :
- Specifying you’re in a GDPR-respecting country doesn’t change their process, because their process is two steps anyway : first deactivation, and then deletion. The deactivation window is there in case you decide to change your mind. I don’t think they can shorten it. Once the delay is passed, your account will be marked for deletion and you can’t go back.
- The GDPR actually states the deletion delay between you asking and your account being deleted is 30 days. I don’t know if it’s an upper limit or not, since I know many services who delete faster than that, but you should expect Discord to delete your account before that.
- The data Discord will delete is “everything” except your messages. All of your messages will still be there, as well as your participation and presence in servers. It will just be anonymized. I don’t recall exactly how long it takes, but I recall seeing two different usernames on my main account when I was banned : one with a random number, and then later User000000 or something like that. This is essentially what’s gonna happen to you.
- For other datas that are kept on servers, I don’t remember what the GDPR exactly states but I think a few data has to be kept (legally, as in, Discord has no choice) for one or two years ?
I remember seeing a very cool chart about the deletion process and the timelines to be respected to be GPDR-compliant, but I can’t find it anymore. I’ll try to look again, because it was really cool.
Regardless, congrats on ditching Discord ! Even if they keep a few things, it’s still a lot better to delete your account and uninstalling the app than keeping them anyway.