Modern source ports are a totally different thing. If any, try to do what the former comment states
with a Boom compatible engine as Crispy Doom or Chocolate Doom.
Crispy and Chocolate Doom are what the community calls "vanilla" Doom, with no enhancements at all.
That said, if you are willing to hex-edit the map data, you can have non-euclidean geometry in vanilla Doom: https://doomwiki.org/wiki/Linguortal
No, I'm not confused. To me, Boom it's pretty close to vanilla. Zdoom and the rest are pretty much another league, closer to Quake/HL than Doom.