Yes same for me, I use Fork Client and uploading a simple picture was extremly slow. They are scanning the hell out of everything we post there. I didn't like Telegram in the first place but somehow most Bitcoin meetup are organizising there and even support for some Bitcoin apps are only (mostly) there. 

I really wish this will trigger some migration to nostr and SimpleX, or at least Matrix but please, please, no Discord, I hate it so much, beside its centralization and closed source it's the most confusing app I ever used.