I'm tired of this shit and nobody has been helpful pleasr tell me y'all are useful

I got a rog laptop with an i7 8th gen and 24gb ram 1tb SSD and a GeForce GTX 1080. It has a terrible battery and I can't leave it unplugged or it turns off, whenever I open elden ring, tcg card shop sim, or now a Roblox game it shuts my entire computer down and sets the battery to zero but instantly changes back too 100 as soon as I close the game. I thought this was computer specific but after trying it on a mini PC and a PC I was getting ready for a friend it did the same thing, r/computers says windows is fine and Roblox I got off chrome and the steam downloads are from steam obviously, there is no common outlier for what this problem can be I bought elden ring and got to play it for two weeks before this happened it's been happening since early January I tested ryzen(mini PC) and Intel(all others) only other problem is windows 11 but how can I fix this bullshit