It's weird. I've never seen anything like that before. Have you installed any updates lately, by any chance? Maybe it's a bug that occurred during the update. But I think it's some game app that monitors performance and shuts down background processes while playing. It's a game buster, to put it simply for you. We shouldn't rule out that perhaps this app itself is corrupted if it's not doing its job. In that case, please find out the name of this application and delete it in the settings or through the pc.
But I love pc and console games more. Indeed, I don't buy games from official stores. They are too overpriced. I like to use different sites like
cdkeysforgames. For example, here I bought the new FIFA 2022.