When I can’t sleep, I turn around and sleep “upside down” - moving my pillows to where my feet were beforehand, and my feet to where my head was beforehand - and I stick with that for a week or so. It gives me a week or so without insomnia and then wears off, so I have to turn myself back around for the next 7-12 day period.
Admittedly this could just be a me thing, but let’s put our faith in this method and let the power of placebo effect take hold. Boom, minor bouts of sleeplessness are cured.
What are your own examples of this?
Unfortunately Mint and Ubuntu (and maybe Zorin too, I don’t know about this one) stay on older kernels on purpose to maintain stability, and new hardware requires new kernels. Not only that, but mesa should also be ad updated as possible. I would normally not recommend this to someone who’s starting, but maybe give Manjaro a try. Maybe Bazzite is a better idea though, although I have never personally used it.
The reason why I don’t usually recommend Manjaro to people is that it’s bleeding edge, and that can cause problems. But in your case currently your hardware requires bleeding edge. Otherwise in a few months Ubuntu 26.04 should be released and I expect it will support your GPU better.