I've found, at least in myself and friends, burnout comes from playing one game or one type of game, and getting bored with that specifically. You need to find something new, but I can't really give any suggestions since that's entirely subjective.
I fell off gaming for a while because my job got crazy. The Switch and specifically Breath of the Wild pulled me back in. Then I honed in on Monster Hunter World in particular for a long time and kinda burnt out because a different job got very demanding of my time, and it wasn't even a change of game, but just getting a better internet connection so I could actually participate in multiplayer that pulled me out of the rut.
Keep it varied and it'll stay interesting. A buddy of mine just tried to swear off all veeja because he declared himself an addict. He's not an addict, he just burned out after playing nothing but Elden Ring for a solid year. He took a break for about a month and now he's right back on ER with renewed passion.