Using a 2022 Lenovo Legion 5i with 3070 and the batter life is regrettably similar. I desperately wish my Linux boot could dunk on the battery life of windows but it is extremely similar, which I guess I should take as a win.
Running Mint with 6.1 kernel, but have tried a slew of different builds and they are all within hitting distance. Again. I should be happy but I'll only be happy if all the hours I have spent screwing with my OS leads to a clear win of some sort other than the intangible benefit of sticking it ever so slightly to MS.