Yea, I am running Wayland too and had to add some settings in home manager for my cursor. Only issue I still have with gossip is the scrolling feels very different than my other apps. But hard to track down why.
Discussion
I have avoided the home-manager rabbit hole, but would take another stab at it just for gossip...
I increased the inertial scrolling to 1.5 and it's much better, imo. Scrolling via touchpad, mainly.
I avoided hm for as long as I could too. It still feels very heavy, but has iron’d out a few quirks like this.