Kitty with catppuccin and 50%-ish transparency. Works like a charm. And also if you add something like what kitti3 does (look it up on github), will be even better.
I use kitty and I was running at like .9 transparency I think? And after a while it'd cause the weirdest artifacts and ghosting and such on my monitor. I just turned transparency off and it's been fine since. I'm sure it's my monitor and nothing to do with kitty or any other underlying software or drivers. But it was strange.
Yeah, did get these sorts of issues with the same setup (me when im a nixos user). Tested both kitty and hyprland transparency, they were both kinda borked. After some time, tearing commenced and i turned off all transparency.