This and it's come a long way in the last 10yrs but it's more dependent on hardware. Optimus still an issue with nvidia (3hrs) vs 630(5hrs) and have to switch between. However, just bought a pair of (used) x270's to travel with - one has Fedora and the other windows 10. Linux lasts 8-9 hours and the Windows about the same (maybe less).
Yes and I agree that is the case. Came from DevOps, so Linux still feels natural. Though I use it for everything now from developing, image/video editing, browsing. Literally, I feel like the only thing I can't do is IOS development.
Docker has been my biggest gripe lately but admittedly has gotten better.
Update environment. MacOS requires reboots and nags you constantly until you do. Whereas, apt and dnf are simple and can be automated in the background.
Doing anything 'interesting' requires you to reboot and fiddle with the firmware. Where linux sudo works as expected.
Outdated software due to licensing issues. See GPL and bash. Not to mention you will be much closer to a production environment and you will find less bugs developing due to differences in OS.
Lots more but this is a good start. All of these things are small and mostly can be worked around but they add up I'm a big way.
The road on Linux isn't completely rosy and can take more learning if you need to do anything really complicated. Tools are great but not necessarily pretty, etc.
I come at this from a productivity perspective after using Mac's for several jobs - Linux boosts my productivity by 30-40%. Anecdotal, sure, but things just work in Linux and your not constantly having to fiddle around and click through things. It could also be that Mac's have declined in quality and I can put Linux on nearly anything and it lasts forever, especially when you put it on high quality gear that just doesn't exist at Apple.