Normally I'd go to r/mousereview for this kind of thing, but fuck that website.
Can anybody recommend me a mouse that isn't going to fuck out inside of a couple years? Was previously using an Ironclaw until the USB port went, replaced it with a Basilisk and the scroll on that one's started to jitter up and down now. I have fairly large hands and tend to use knuckle claw grip. Wireless is a must, builtin battery preferred, but requiring a single AA isn't a dealbreaker. I don't mind heavy, prefer a little weight tbh.
I have to disagree with the G502. I have the Lightspeed and had a serious double clicking issue within a year. I use an MX master at work and bought another for home and am very happy with that.
I've had that happen several times with various buttons. It was always a piece of gunk that got caught between the legs of an IC, a good cleaning fixed it. But then it could've been a simple faulty microswitch.
Have an MX master 3s and it's been really good so far. The weight took a bit to get used to (came from an apple magic mouse which weights almost nothing) but the extra buttons are super useful both for games and general usage.