Get what you are trying to say but both are still encrypted. They simply aren’t end to end encrypted. So the messages are private. Until obviously the company servers get hacked or police raided and the keys to the encryption get stolen. You are protected against this in E2E encryption. True.

Ii guess telegram once was the alternative to whatsapp, then made maany more featutes abailable in fast time paces which led to another bunch of migrators.

Now noone wants to move away because why? For the usual end user there is no negative to them.

I am fully on your side and am using signal and matrix and try to migrate as many people as possible but its hard.