How can this video of a phone running GTA V be real?

If even my gaming PC with a 3060 struggles to run this game at 60 FPS, did they overclock the phone?

https://youtu.be/l8fIXaLFYCA?si=KyNUr_GR6Ep7TwM2

From the same series as now you can play GTA Vice City directly in the browser

PS: where do you download this on the Play Store, how exactly is it emulated and, most importantly, what settings are needed to run GTA V on mobile?