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3 months agoSimplest first suggestion is open the machine and checking the air vents on the laptop for excessive dust contamination thoroughly, not just ‘blow air in’ - this may be easy or hard depending on laptop manufacturer.
Then try downgrading the nvidia driver to conservative 580 series. 595 is pretty bleeding edge.
Get back to us after that.

As A long time Linux user I couldn’t agree more. My son, who likes to game with me, was handing down his ‘old’ nvidia cards such as a 3070, so I put up with years of nvidia’s crap. A couple of months ago I ripped out his ‘old’ 3070 and put in a new XFX brand AMD RX 7600. Works out of the box and plenty fast for HD resolutions. Why did I waste years of my life fighting with nvidia nonsense on Linux??