I revived three ancient computers with ChromeOS Flex

> an Intel i7 and 16GB RAM

Old, yes, but I wouldn't say that's an "ancient" computer. I'm sure it can deal with Linux and Windows pretty decently. Even today, cheap chromebooks are sold with a quarter of those specs.

"The Linux desktop that will transform the industry is ChromeOS."

"But there is one huge reason why I think ChromeOS will be big: many old PCs are sitting out in the wild that cannot go to current versions of Windows 10, Windows 11, or even current MacOS. And there is fundamentally nothing wrong with these PCs, but they are just too old to be supported by their original manufacturers."

I've seen on many other sites (especially on Mac sites) that people really don't like the idea and rather install an outdated macOS. They call ChromeOS spyware too.