NorseVictory You can buy whatever crypto from whichever platform is supported in your country and still send it to a Telegram wallet supported country (Russia).
Yes of course. As for me I don't use Telegram wallet, I use my Russian bank account that I refill with rubles bought with crypto from Russians through whatever exchange site.
I mention what happens to Telegram because it's (former) streamlined integration was recommended here.
In fact i even wonder about Toncoin now, after Pavel Durakov has given hilmself.