You should look into enabling Wayland, which PopOS! disables by default. That should give you silky-smooth 60fps desktop transitions like MacOS, as well as 1:1 trackpad gestures. Happy hacking!
>>bright+E5
Yep. I'm not a huge fan of Wayland personally, but if you simply want "more Mac-feel" then it's probably perfect. Enabling it in your config allows you to switch between x11/Wayland without a real risk of borking your desktop.