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Linux is pretty green at least
Well I can argue with that because Linux systems usually consume more energy than identical systems with other operating systems though they are probably less green due to having a lot of cloud and ad related tech built in.
That's not ture atleast on my system, I played modded Minecraft for 4 hours on performance mode and I still have 15% to spare, I also watch BCS for an season and it's only drain 60% on power saving mode
Did you check the consumption on other operating systems?
I used win10 1 years and I don't remember exactly what the power consumption is like but I think it probably worse because of win10 use more on CPU and RAM for anti-malware and telemetry
Extremely dependent on a number of factors, mostly hardware and configuration. I had a Thinkpad T480 and on a stock fedora install it definitely died faster than W10, but after setting up TLP and Powertop I squeezed ~2 more hours of use out of it than Windows could manage. Ditto for my framework 13, I get all day battery life on NixOS but when I’ve tested windows on it I lose a few hours immediately
Linux systems usually consume more energy than identical systems with other operating systems
Is this true?
Yes, at least on battery powered PCs. Other kinds of machines may be more efficient on Linux but I guess these are mostly cases when there are no big and well developed proprietary solutions for them.
I imagine it varies wildly by distro, hardware, use-case, etc.
I don't have any information that proves it. I think in this list only hardware matters.
Surely use-case is important? Someone running a server that's on 24/7 vs. someone running it on a laptop or desktop that they shut down every day.
I was talking about comparing the efficiency between operating systems. That requires the use case to be the same. Comparing different use cases is unfair.