[vhodges]

The look and feel ('uniformity') is more a matter of what desktop environment you want to run rather than Distro (though that can matter too). Choices include:

  * Gnome
  * KDE/Plasma
  * xfce
  * Elementary (but to muddy the waters a bit, is also a distro around their DE) - This will probably be the closest to MacOS in terms of L&F
  * Budgie
  * Enlightenment
  * And others (more niche (low ram etc))
  * Plain ol' X11

A lot of distros are opinionated and ship with a default DE (eg Ubuntu/Gnome) but you can generally can install what ever you want. Some (Arch, Gentoo) are not opinionated and let you configure it as you see fit.

If you've never installed Linux, I would start with Ubuntu as there are lots of guides on it. Ubuntu is derrived from Debian.

If you're comfortable with the command line and making more choices Arch is a nice distro (and really isn't any harder than Ubuntu, just different - the arch wiki is very good for docs).

(edit: Formatting, typos)

[jamesponddotco]

Quick correction[1], elementary OS is the name of the distribution, while Pantheon is the name of the desktop environment developed which was developed for it — it can be installed in other distros, though.

[1] I am not anelementary OS user, but since you mentioned desktop environments, I think the correction might be worth it.

[vhodges]

Thanks and no worries... I am don't use it either!

[fricketfracket]

I agree with everything but strongy discourage you from trying out Arch. It's easy if you've done it before but coming from MacOS and being used to everything working (which already in Linux is not the case haha), something Debian based like Ubuntu is better... (Or Pop OS imo since it's just like Ubuntu but better...)