Yeah, I’ve seen a lot of links around the internet for an alleged “GTA V Mobile”, but whenever I download it and try to open the game, I always end up with some completely different, super buggy game.
Netflix has been offering some games for free to its subscribers. Red Dead Redemption, Farming Simulator… I think the only thing really missing is a GTA V. Of course, it would need an optimized version with a smaller map so my Xiaomi doesn’t explode.
If I’m not mistaken, there’s even GTA San Andreas for mobile and you can play online. I’ve actually been wanting to try it for a long time, but it looks like my phone isn’t compatible 
Just a reminder: I don’t recommend anyone download GTA mobile from shady places. Always use the official store. The Play Store or Apple’s store. Never download from suspicious websites, okay?