I would recommend it. I stream my desktop using Moonlight/Sunshine. If there’s any latency it’s imperceptible, but that will entirely depend on your internet strength and speeds (desktop is Ethernet 1Gbps, steam deck is over 5Ghz WiFi 1Gbps).

I regularly stream my desktop while elsewhere, so don’t even need to be on the same Wi-Fi connection to get the same stability and video quality. Think I get <10ms latency from network while being 30 miles from my desktop, but I’d have to check (YMMV). Will need to see how it works once my LE OLED comes in later, but doubt it’d be any worse.

I haven’t tried gyro with it, so can’t comment on that though

I really enjoy using Steam Controller and Flydigi Vader 3 Pro. The latter takes a bit to get the extra buttons to work, but I managed to find a pretty usable work around using macros and steam input (good luck finding them in stock though).

Really basic but I might as well confirm, do you get any audio from the menu screen? I’m assuming it normally booted directly into the Home screen and not the lock screen.

Occasionally my Steam Deck screen doesn’t turn on when it turns on/leaves rest mode. But it’s still physically turned on since I can hear audio cues going on (i.e. moving the LS to select games listed on Home makes a sound), and pressing the Steam button on the left side turns the screen on. I don’t think that’s what is going on here since you’ve had it for so long, but I figured I’d check since no other button besides the Steam button fixes my screen, similar to your situation.

Hope it gets resolved soon, sucks you’ve had to deal with this.