I wish I could quit Telegram myself, but with how much it is used for my university and recreation - it is next to impossible right now. So instead of that, I at least tried to minimize harm: treat it as a fully public space and behave as if every my conversation there is watched right now (so that the chance of saying anything remotely dangerous is minimized), use a FOSS client instead of the official one, and try to get as many individuals as possible to XMPP, Simplex or at least Signal.
I wish I could quit Telegram myself, but with how much it is used for my university and recreation - it is next to impossible right now. So instead of that, I at least tried to minimize harm: treat it as a fully public space and behave as if every my conversation there is watched right now (so that the chance of saying anything remotely dangerous is minimized), use a FOSS client instead of the official one, and try to get as many individuals as possible to XMPP, Simplex or at least Signal.