It was a many months transition, and it's finally done
Fun thing, you can actually make a backup of all* your messages, groups, contacts, etc. So before leaving you can have all of your data in case you need that one contact or something
The final red flag was as that allegedly Russian authorities were messing with people's deleted messages. Not for the first time there are news that they could read, modify, delete, see location, and etc. Screw it, this is unsafe, I'm out.
Also, these days telegram is really at the state of a pile of garbage, bloated, buggy, and shady messenger.
I deleted telegram long ago, but not my account, just the apps.
As of recent, I wanted to log back in and actually delete my phone number from there, so there's no more association.
I can't login. I download the app, and it sends a verification code through Telegram and won't do SMS, but I'm not logged in at all so I can't get the code.
I'm stuck there. I contacted support and they're yet to respond. :p