I'd say Mac you get into knowing that it has opinions and not a lot of customization options. Coming from Linux, yeah that's going to be an adjustment.
That being said, the author has gone out of their way to take the customization options that it does have and set them up in a way they don't like, apparently just to have something to complain about.
Take this screenshot: https://miro.medium.com/max/700/1*YT_A3adukXXku33P2htLUw.jpe...
By default, the tab bar isn't shown when there's only one tab, so they've gone and enabled that. The path bar at the bottom is also not enabled by default. All you would normally have is the selected folder in the sidebar (when applicable), and the current folder in the title bar. But you can turn on other options if you want to complain about them existing.
But then he's steadfastly refused to change the icon organization settings, just to make sure he can complain about that too.
I don't think the author is coming into this with a healthy attitude for trying a new OS. I get along just fine in Mac, Windows, and (occasionally) Linux, and despite the occasional adjustment to different conventions I've never felt a need to write an angry blog post about how garbage anything different from my default is.
EDIT - taking a look at that screenshot again, it's from before the Big Sur redesign, so at least 3 releases old, and apparently from before the author ever used a mac. So he's gone and dug up someone else's old screenshot just to have something to whine about or what?
Apologies for taking the flame bait, oh well.