I think this is probably the best argument against platforms with locked app stores- civil liberties. The only reason that Belarus can ask Apple to ask (force) Telegram to do this, is because there is no reasonable alternative for most people to get an application onto their phone. If I could easily install other app stores onto my phone, then government requests like this would not be effective.

I'm pretty sure that the most people are able to navigate to web.telegram.org and create a bookmark in their browser of choice. Overall it's an even simpler set of steps than any app store can provide you with, and you don't need to regularly download new updates for it.

And Apple continues to cripple progressive web apps in iOS (example: push notifications), unfortunately making this idea not as useful as on Android.