Lastly, I had been running a bridge bot forwarding messages between @kiaun Discord and Telegram channels for a long time before Matrix even was on my radar and after the development of the software I was using got discontinued I needed to find a replacement.
Turns out Matrix bridges fill that spot nicely, with the added benefit of all the bridged channels now also being accessible through Matrix for everyone that understandably would like to not sign up for Discord or Telegram.

The Space containing all bridged channels can be found at #derideal:squirrel.rocks (https://matrix.to/#/#derideal:squirrel.rocks)