Pipewire may be a candidate for a something that would make me switch, only because I have some issues with Ubuntu and my bluetooth headset, where the microphone is not really working always. Also having to switch back and forth between high quality playback for music and "headset" settings is not really ideal. But I am unaware of Pipewire solving these.
Things feeling off are hard to describe, but a concrete one is the software centre being pretty buggy and Snaps causing there to be many duplicate entries (and also Snaps being dependent on a single, closed-source Canonical server by definition).
But yes, I think Pipewire sealed the deal for me, at least in terms of giving Fedora a try once. I'm not sure why anymore, but I think it had something to do with being able to do screen sharing in Wayland?
In either case, it was mostly curiosity, and the differences really aren't that big. But it worked just fine right away, with nothing much to get used to, so I just stuck with it. Curious to see how the upgrade to v35 will go though.