Yeah, but they are called prod.keys. Yuzu has a getting started page. It will tell you how to get your own prod keys from your switch, but you could see if condone put them up online. But I wouldn’t know anything about that 🏴☠️
I haven't tried with Switch saves, but I sync saves for several other platforms using Syncthing and it works perfectly. It's a set-it-and-forget-it solution. You just have to find the folder where the saves are stored and set up a sync. Whenever your devices are on the same LAN, they'll sync the saves and you'll always have the latest one on all of them.
I've decide to play it on desktop and Deck. When I played botw frame rate got rough at times on my switch. I'm assuming emulation itself is relatively bug free with textures and stuff and 60 fps works without issue, and haptics for switch pro and gyro work normally?