Depends on he kind of developer. Web developer? Probably. Game developer? It's a joke.
> Even a majority of Steam games seem to work on Linux now, via Valve's fork of Wine.
That at least is true, it's getting a lot better. However, VR is still a hell of a lot more problematic on Linux even if you're using Valve's hardware.
Like I said, a lot of it comes down to how and why you use a desktop computer in the first place.
I think it's better at technical things for any kind of developer or technical person, generally. (Even at non-technical things in some cases: KDE, as a desktop environment, wipes the floor with Windows's desktop environment, from the taskbar to the file manager.)
But if one developer's "better" includes "playing <AAA game with anticheat>" or "using Photoshop" or "using VR", the betterness is sharply decreased.
I count myself extremely lucky my need/want matrix has happened to align such that I'm much more comfortable on Linux than on Windows, but that alignment is sadly RNG. :p
It's also good if you just need to do one or two things and they happen to work on Linux. Some people install it on their grandma's internet PC.
Even a majority of Steam games seem to work on Linux now, via Valve's fork of Wine.