I think I used the word commercial wrong xd

I think there is always someone who is more willing to try it, so you start from them. Like a a techy friend or a parent who doesn’t really care as long as they talk to their child. Then you can proceed by complaining to your social circle about the bad quality of the apps you currently use (like messenger). Someone will be convinced eventually. I recommend you go with signal though since element (x) apps are still not ready for commercial every day use.

Gift someone premium, do this and do that with premium, now there are some ads too etc

It’s true. I’m also really annoyed with rising telegram premium stuff. It used to be just a nifty addon, now it’s everywhere.