Mappers had to look listen to the description of the DM and try to draw a "good enough" map. Very easy to get things mixed up or one square off, and have to erase and redraw. "A doorway to the left" can be confusing when you're are heading south and it on the right of your map. Or maybe the DM means the left of the map?
Bear in mind, there was often treasure hidden in secret rooms, so knowing where the unexplored space was could be pretty important.
Once in a blue moon there was a player who got a thrill from that, but most folks hated the hassle.
In an OSR game, you only fight when you have to, because victory is not a foregone conclusion.
You might also "roll up" your character instead of creating one. Which everyone should at some point, because it's a whole part of the game that's disappeared. If you hate trying to come up with a character concept, you might well love a game where the dice can give you some ideas.
Most modern OSR games will tell you that characters have no "plot armor" and are just as vulnerable as NPC's, just like they were in the old days. But read the rules, and the PC's actually do have some plot armor after all, just a bit less.