Transferring an account from iOS to PC

Hello!

I bought Minecraft for my iOS back in 2013, and I want to ask one question.
As far as I understand, now iOS, Android, Xbox, PS, PC are united by one minecraft - Minecraft Bedrock Edition. Can I transfer my iOS account to a Mojang account to play minecraft on the same account on a PC? If so, how to do it?

The first time I wrote my question in Russian, now I use a translator, so I apologize for the inaccuracies in the translation.