Recent example; someone gave me a cf19 which had a dodgy battery; it had the official Panasonic windows install with the Panasonic drivers and optimiser and the battery went from full to 0% in about 15 minutes; I did a windows 10 install, again with the official drivers and got about 15 minutes. Did a windows 10 install without drivers and got about 15 minutes. Did Ubuntu install with my post install script and get consistently 3.5 hours. Yes, I know this is a weird case; I bought a new battery by now and still get the same behaviour; no clue what’s up. I thought it was funny though because ‘windows better battery life’ people.
And this always happens; my x220 runs 8+ hours under Linux while barely getting to 4 under windows for the same work. GPD pocket 1 runs over 10 while under windows getting not even 4. And these are the ones I use all the time for work. I consistently see this and have no clue what people are doing who claim windows has better battery life; must be much different workloads. I use i3wm (which I believe makes all the difference; with Unity, battery life gets slashed by up to 80%), code in vscode and vim and browse in Firefox; but I do that under windows as well.
But a proper installed windows, without bloatware and updated drivers, always won by a large margin.
And the bigger showstopper are standby/hibernation. Touchscreen glitches etc.
So I have 2 devices, one lightweight chromebook. A bigger windows laptop and manjaro on the desktop.
I very much prefered to have manjaro only.
Out of the box linux experience is actually quite good. Performance loss I can handle, but standby-resume reliably introduced touch screen bugs and other annoyances. Or did not wake up at all. I actually just recently gave up with linux on it and installed windows.
(which was surprisingly a big huzzle, I had to resort to third party software to get the right windows drivers. But now it runs way better - and more importantly, more stable.)
I even made my own manjaro (arch linux) version. So I have a USB stick with all my setup and programms, I can plugin and go hacking on any computer. Or directly install it. Takes only 3 minutes ;)
Of course that is freaking awesome.