I've been using Macs since 1988 and I've never wanted your point 1, 3, or 4, and my dock doesn't take 50% of the width of the screen, it takes about 5% of it because it's on the side where it belongs and where it was on NeXTstep.
So none of this has ever applied to me, and TBH, I can't even imagine it applying to me.
You just don't know how bad you have it, that's it.
But sure, MacOS is great, go back to installing a 3rd party software to snap windows xD
Linux wins for dev and loses for apps. Windows wins for apps and loses for dev. Mac is second-best at both which is why I prefer it.
That said, I'd love to be running production-ready Mint on my M1 Air.
Edit: I forgot to say, and it's the reason I responded to you in the first place, that I agree. It's really sad that something like Rectangle has to exist just to get decent window handling.
Pot, kettle, black?
To make window management bearable in Windows, I install Powertoys (Fancy Zones). Granted, it is not third-party, it is by Microsoft, but then it is version 0.something, it shows and there's a reason why it is not shipped with the OS.
Secondly, I was a Windows early adopter and have used it since version 2.01. I do not see any relevance.
3rd, yes, I have Rectangle, which replaced Spectacle. So?
The dock leaving empty space on 50% of the width of your monitor is also a fact.
Or having to run a weird command in the CLI to add an empty space as separator in the dock.
Or having no "Apply to all displays" when changing background images on monitors.
That's just 30 seconds out of the top of my head.