Virtual desktop is just 20 bucks, the only knowledge you need is how to make sure your home router doesn't suck, or if you don't want to know that, buying a bespoke single device USB router specifically made to stream a VR headset, like a puppis S1. Basically the big version of Steam Frames dongle.

And having a computer worth streaming to the headset. Depending on what you want to play, the hardware requirements vary quite a bit. Most stuff made for VR is relatively accessible. But if you want the really good games, those currently mostly come from good VR mods for good games. And they will generally have a higher hardware requirement, as they weren't optimized to run well in VR.

If you just want a VR headset to stream flat screen content to, like a 4k steam deck that you don't have to either hold your hands up to your face, or look down at your hands... then even a super entry level computer is plenty for most games. Anything you can already run on your computer will play and look nearly identical streamed to the headset with Virtual Desktop. VR headset hardware is extremely optimally designed around low latency. So it's one of the lowest latency options for streaming flat games. I generally am reclining in a real comfy recliner when just playing flat games or watching TV, and putting the screen at a nice comfortable viewing angle and height for that. Not to mention putting the monitor 20 feet away and making it huge, so it's comfy for my eyes. No staring at a screen 2 feet from my face anymore. Even though the screen is actually one inch from my eyes, lol. Doesn't feel like it to them, and that is the part that is important.

And, if you don't have a computer, Quest 3 still has decent stand alone games. The operating system is mostly only annoying in that they constantly change stuff without making it better, just different, and stuff breaks alot, cuz they fired most of their humans and the few humans left are mandated to generate everything with AI. Same goes for firmware. Frequent broken features that can last for months. It sucks, but still hasn't gotten to a point where it can literally be called unusable... but it sure can figuratively and hyperbolically be called that. As many people will demonstrate.

You don’t really need Virtual Desktop. The Steam Link app has made leaps and bounds in functionality and quality over the years. If you have a good home network (I’m taking a router with WiFi 6) and a PC wired to Ethernet, you can stream to the headset just fine.