This really depends on the game you're making. Some games don't call for super purposeful layouts because the fun comes from things other than your surroundings

This really depends on the game you're making. Some games don't call for super purposeful layouts because the fun comes from things other than your surroundings making a lot of sense. As long as they generally look believable it's mostly fine. And so in those cases as a designer you just really need some places to place enemies in and going for a random enough algorithm is a good idea.