To anyone who hasn't already: I really recommend checking out Haiku OS [1], the FOSS successor to BeOS. It's so pleasant to use and supports a surprisingly large catalog of software.
I occasionally spin up VMs with this and OS2. I miss the era of operating system options. But but linux. It has it's place, I run FreeBSD, but for desktop, options dimish. I like apple hardware, I like apple hardware trackpad support. Running Linux on a MacBook is not something I would ever do. I used FreeBSD on stinkpads for years.
Haiku is actually pretty usable these days, someone has a draft nvidia driver that's not completely terrible (as of maybe a month ago? still very DIY but neat), and there's a surprising number of retro games and shareware in their package manager catalog these days.
Claude built me a meta web/notes/code search engine with IOS and MacOS apps, and for fun I asked it to make a Haiku version [1], which it did in under 20 minutes.
With AI I feel like a lot of these bygone-era OS's could see a whole new ecosystem of modern apps within a very short period of time.
1. https://github.com/machiya-kobo/shiori/tree/main#haiku