I remembered that GZdoom has options to make the map more useful. I customized my experience and I'm having a splendid time

* Normal height changes/doors are dark green
* Locked doors show up as the color they are
* Teleporters are light green
* Level exit is orange
* Secret areas are pink
* My location is a custom arrow that lets me see which direction I'm facing https://github.com/mmaulwurff/zdoom-arrows

Wow, the author of the arrow mod has a whole suite of mods to make navigation easier, including something I always wished Doom had, an on-screen compass https://github.com/mmaulwurff/hellscape-navigator

They don't work with Freedoom, I guess because the fonts/assets are different  but I'll definitely be using the compass the next time I play a standard iwad

Never mind, I'm a fool. I just had to finish the level I was on. It doesn't work from an existing save. I got pwned