The thing is, the vast majority of maps and mods made in the last 15 years target QuakeSpasm, which is much more vanilla than something like GeeZusDoom is for Doom.
Mark V's Winquake is meant to be something like an enhanced software renderer, but it still has many non-vanilla features. I'd say that besides the absence of texture filtering, it's very similar to QuakeSpasm. Mark V d3d 9/OpenGL is a Fitzquake fork (like QuakeSpasm is) which adds features from Darkplaces and JoeQuake.
I don't know if it's comparable to anything Doom-related, but in the last however many years people have made hardware-rendered Quake engines that add back features of the original game, like the visual effects of software-rendered Quake, but still render at higher res and have anti-aliasing for instance.
Darkplaces was more similar to what GZ is in the past, but it hasn't been updated in a while and the majority of community content is not even tested on it. The community adopted QuakeSpasm as the standard at least over a decade ago and Quake mods seem to usually be much more conservative of the original's gameplay and feel than Doom's. This is my Doom outsider perspective.
I think
FTEQW is the most comparable to GZ. Supports lots of extra features, both visual and scripting, and a few standalone games use it (I'm not involved with it enough to know them). Some of the mods that most modify Quake require it like top-down Quake, and Superhot Quake. However, in the Quake sinple-player scene, it's more of a niche engine.
