I had bedrock version for pc long time ago. (i didn't remember: i bought it by money or with a code, it was a gift). On the product page it offers me to buy minecraft._. I didn't mind it then. So, when i installed launcher and logged in there was "play demo" button on java edition. (and "Player" instead my nickname) On the bedrock page there was also "Play trial" button but if i run bedrock it is the full game. 

P.S. If it's reqired i can send a video documentation

Thx for attention