> basic desktop functionality
I feel your pain, but find your idea of "basic" functionality amusing.
That said, `pw-dump` / `pactl` will give you client names, which often match the window titles.
Anyway, I do think I've created what should be considered basic desktop functionality here, a simple hotkey that mutes or otherwise changes the volume only of the focused window. Every desktop should have it.
This is just one of the tools I've made for myself with X which I do not want to do without and this makes Wayland a non-option for me. If I can't use X and can't replicate things like this with Wayland, then maybe I should switch to MacOS at that point because the dream of controlling my own computer seems like it's dying anyway.