I think it’s better when a team actually has designers working for them and comes up with their own real UI standards, (see Pop!_OS). IMO Apple’s UI design isn’t particularly good so it’s not like some holy grail we should copy and paste to Linux.
It may not be perfect, but it’s pretty darn good - as especially visible when comparing to this effort presented here. There’s a lot of detail and polish in MacOS interface design and UX people don’t realise until it’s missing.
Fixed that for you…
However, as someone who has used GUIs from SunView/Irix Desktop/DECwindows to iPadOS/MacOS, via Windows 2.0/3.0/95/NT/etc. I am of the opinion that Apple is still the most consistent and easy to learn GUI. Even my 80-year old mother manages quite well with her Mac and iPhone.
In my experience with some Linux distros goals alone don't necessarily work out, but the approach with trying to be compatible with actual Mac OS apps is already more notable than an Ubuntu reskin.