Almost. Compared to the existing third-party tiling managers, this seems to cover the bare-bone basics and nothing more. But that probably also satisfies a large portion of the userbase.

Rectangle does much more, but it actually lacks the one feature I need with window snapping: the ability to resize both snapped windows at the same time. The native Sequoia snapping does it.

I only ever use snapping for left/right snapping (I never used 1/3 snapping or corner snapping or other Rectangle features) so I’m glad I finally need one less third party app.

What is it missing?

Try AeroSpace.

Try rectangle and you'll see

All models are flawed, some are still useful.

Cars are a great example of this. The majority of them have an underline design flaw but people keep buying them with said flaw. The door entry is not designed for parking lots / car parks.

Finally the UX on mac is almost half as good as a 15 year old linux window manager.

it's pretty far still. I don't think Apple prioritizes power users much. Their products tend to cater for less tech savvy folks.

macOS has plenty of power user affordances, they're just Apple/NeXT-flavored rather than Windows/Linux-flavored and might not be as immediately obvious to users coming from other platforms.

I used and still use macOS, Windows and Linux. For decade(s). Because of consulting.

macOS breaks a bunch of my stuff in every update. Window management still atrocious. Many functionalities present in other OS by default require third party tools and subscriptions. Apple hashes every executable I run and sends to their servers.

I prefer working with Linux/x86 platforms. I get to enjoy faster hardware and predictable, customizable software.

That preference is totally legitimate. There are however many types of power users, including those who extensively customize and augment their desktops and sync their dotfiles, as well as those who know all the key shortcuts, tips and tricks, etc but run mostly-stock configs.

I’m in the latter camp and it’s exceptionally rare that major OS updates break anything for me.

Can I finally change the Enter behavior in Finder? Or do I need to be forced to rename everything still?