I have a Dell XPS 13 Developer Edition. I get 5 - 6 hours of real work out of it, 8 when doing nothing major using Ubuntu 20.04, but I have the 4k screen I hea

I have a Dell XPS 13 Developer Edition. I get 5 - 6 hours of real work out of it, 8 when doing nothing major using Ubuntu 20.04, but I have the 4k screen I hear it is a lot better if you have the 1080p screen.