For me the biggest surprise was that old ps2 usb racing sim wheel+pedals just worked instantly with linux, and I could use it in dirt rally without any pains. It felt amazing. oculus quest 2 also works very well with alvr, even wirelessly.
I got a Quest 2 recently and Steam Link would not connect, ALVR would crash after a while, but WiVRn work perfectly on my Arch Linux with a AMD Radeon RX 6700 XT. It's nice that we have multiple options.
I assembled a PC last year from used parts specifically to try gaming on Linux after two decades with only the occasional FreeCiv or MineTest, and the experience with Steam is mostly painless. Impressive!
