Windows 10: Can anyone tell me what is wrong with my laptop?

This issue has occurred twice. Whenever I start my laptop, there is an extreme flickering on my screen as you can see in the photo where there's a glitch-like occurrence at the top. It's extremely lagging as well, and I can't even move my cursor smoothly. Before this, it's just minor flickering but no lagging. When I maximized any windows or went fullscreen with any application, it started lagging. Now the entire laptop is unable to function normally. The first time this happened is in 2021, then I sent it to ASUS service center. Now it comes back again. Don't tell me to update the graphic dri

:)

 

Best laptop under $800??

Well the last one I suggested seems to be the best for 650$

EDIT: to facilitate your search...

Laptop GFX benchmark list

Laptop CPU Benchmark list

 

Silent boot failure

List your specs out and tell us each step in cleaning you did.

 

Laptop overclocking adventures

hey guys I'm trying to get clockgen to work on my laptop but can't get any of the plls to work, can you please post like exactly what steps I need to take to test each pll to see if it works? my specs are listed to the left
thanks!