Also used to game on mom's phone too.
Though my mom's is the Bronze-coloured one, and yes, PUBG Mobile & COD Mobile is a breeze even at full graphics. Just the thermal sucked a bit, but I don't care really much.
Now that I have my own Galaxy A20s (to replace my tarnated Galaxy Grand Prime; loose SIM holder, random bootloop, damned battery life, occassional lag & tiny storage that I can't even update WhatsApp despite clearing out the Internal), it feels really awwkward to join a Multiplayer CODM match at the countdown instead of the "Pre-Match" like how I used to. Other than that, I've went low graphics, high framerate settings in both games.
But hey, at least I can game with almost zero restrictions now.