NixOS has more packages.
Forget about Ubuntu and PopOS for 5 min. Picking your Linux distro based on how well it (poorly) imitates MacOSX look & feel or how popular it is among Apple connoisseurs & podcasters is regarded. You deserve better.
BTW... You can switch desktop environment without switching distro, and you can have your 3 fingers touchpad gestures with any distro and D.E.
https://www.youtube.com/watch?v=lunnbdFdPJE
#GNU #Linux
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...and a very different learning curve 😅 But that's also a great option, definitely 👍