I also recently switched to WezTerm because it is the only terminal that seems to work cross-platform that is also well supported in Nix/nixpkgs. Before I was using Kitty in NixOS and iTerm2 in macOS, but having one configuration for both OS is good.
P.S.: I am temporary back to Kitty in NixOS because I recently switched from Sway to Hyprland and the current release of WezTerm seems to be having some issues in Hyprland. But will switch back once this issue is solved, I know it is fixed in the main branch for example, but I would prefer to use nixpkgs cache instead of building it from source.
Yes, but when I did the migration Kitty wasn't supported in macOS in nixpkgs (i.e.: nobody did the package integration). Now looking at the package it looks like it should work, but I now think WezTerm being superior in at least a few things (e.g.: the Lua configuration file is definitely nice).
P.S.: I am temporary back to Kitty in NixOS because I recently switched from Sway to Hyprland and the current release of WezTerm seems to be having some issues in Hyprland. But will switch back once this issue is solved, I know it is fixed in the main branch for example, but I would prefer to use nixpkgs cache instead of building it from source.