Wrong!
You can tile two windows. :-)
https://support.apple.com/en-us/HT204948
But yeah, I use Recrangle for my macOS tiling. I use it all day, every day.
Would love something that worked more like Pop!_os’ tiling, or perhaps i3’s.
Strange. Is this new because AFAIK Windows was copied from MacOS and it had tiling at least from 3.0 ? Also in X window managers tiling was an old concept.
(This is sarcasm.)