I like the UNIX/Unix-like category since it could include Linux, OSX, MacOS (current), and ChromeOS, but it doesn't. It would look much different, percentage wise, if those all summed up.
This also is only desktop OSes. Add in servers, smartphones, and embedded systems and it's a much different landscape, but I'm sure MS DOS will still hang on forever.
"Haiku is an open-source operating system that specifically targets personal computing. Inspired by the BeOS, Haiku is fast, simple to use, easy to learn and yet very powerful."
MSDOS, still with us for almost 30 years, that said I dont' really acknowledge a difference between Win10 and Win11. They seem like the same OS to me. The jump from Win311->95->XP was pretty huge and XP -> 7 was fairly significant. But Win7->10->11 seems almost like a service pack.
Yeah windows 11 had no reason to come out when it did. It'd make more sense to come out now or next year. I think they did it to try to capitalize on all the people buying new PCs when working from home during COVID
Windows 10 released in 2015. Windows 11 released in 2021. It's pretty much in line with other release cycles for Windows Desktop OS releases.
XP -> Vista - was about 6 years
Vista -> 7 - Was about 2 (But everyone sane basically skipped Vista)
7-> 8 - Was 3 years, with a fourth year to get to 8.1.
8 -> 10 - Was about 3 years.
If you only look at the releases which mattered, XP -> 7 was 8 years and 7 -> 10 was 6. So, it seems like Microsoft kinda accepted reality this time around and we didn't get some sort of asinine Windows Mojave shenanigans trying to polish a turd. That said, I'm still running 10 on my main system and my experiences with 11 are making me consider an upgrade path to Linux when Win10 goes EoL.