I've had two ASUS gaming laptops, and both of them began having issues within a year, and the second didnt last more than a couple years total.
The first laptop was one of their enormous ROG 17 inch gaming laptops that looked like it had jet engine exhaust. The hard drive died and the power port broke within the first year, and I had to send it in under warranty. The power brick also died, and I ended up having to replace it myself around the 3 year mark.
Thinking it was a fluke, I ended up buying a smaller, more portable ASUS gaming laptop next which had more of a standard form factor. Maybe six or eight months later, that one suffered some issue that required being sent in for service as well. It began experiencing the same issue about four months later, I'd sent it in for repair a second time for the same issue, and they apparently fixed it.
I got to use that laptop for maybe 1.5 years total before it was completely unusable, in spite of two RMAs.
My current gaming laptop is an HP Omen 17 from 2017, and has been completely stable and reliable up to this day. I love to hate on HP because of their dumb printers, but I'm pretty impressed. I'll probably end up buying another one, because I will literally never own another ASUS product ever in my life, and there are only so many manufacturers out there who I'd consider for a laptop purchase.