When you go to fullscreen mode, do trackpad gestures target the host or the guest? eg, does three finger swipe switch MacOS workspace or Gnome one?
When you run your cursor to the top of the screen (like changing the volume in Gnome's the top bar, or closing a window in KDE), do the MacOS window controls pop up?
Do MacOS shortcuts override VM shortcuts? Like spotlight, screenshots and that sort of thing?
You can basically set up almost everything. Mac trackpad guestures seems to be always active, but you can deactivate them on the Mac side and then use them for Linux. VMWare offers a lot of settings where you can customize the keyboard behavior - Mac keybindings like spotlight can be either sent to the Mac or always pass through to the VM, you can also customize keyboard actions. If you deactivate the 3 finger swipe on the Mac, then Gnome should be able to use it. Just that I haven't found out how to activate it on Gnome :p. Updating my VM now.
When you move the mouse against the border of the screen, the mac toolbar pops up, but unless you do, you have normal access to the full gnome top bar. On my M2 Air the Linux fullscreen ends below the notch. So the Mac toolbar pops up around the notch and so mostly above the top of the Linux screen. At the bottom, the task bar gets displayed if you move against the screen border.
So basically with extremely few exceptions, it is difficult to see that you are not running Linux natively on the machine.
(Sorry for the late answer, didn't check my old posts. Is there a way to get a notification on answers to your posts on HN?)
