Zen is based on Firefox, it supports 100% of firefox addons, as well as supporting its own community mods system for changing the browser itself

Zen is literally the best browser around right now, I do understand the UI isn’t for everybody but if you vibe with it, it rocks

I use sunshine and moonlight using a pi 5 running Android TV as the client. It works perfectly for the occasional video stream but latency for games is a bit rough. You’ll probably be fine playing something relaxed like Stardew Valley but platformers (I’ve tried Ultimate Chicken Horse) and racing games (Mario Kart Wii running in Dolphin) are just bad enough to be unplayable. This is with both devices connected over Ethernet (albeit through a powerline adapter and my router is fairly cheap) so WiFi will probably be worse.

Not sure if sunshine and moonlight just have loads of overhead or if there’s a part of my setup causing the latency.

I use Glutun for this

I would recommend you use Zigbee2MQTT instead of the built-in ZHA. It seems to play nicer with certain devices. I also used the dimmer switch method to reset a hue bulb I had and it connected perfectly.