Sorry if the formatting is horrendous, I'm on mobile at the moment.

A few of my players recently have been expressing that they don't think that my dungeons are long enough, but when I try putting more traps/puzzles they then said that they didn't enjoy going through puzzles, and traps with a high DC are unfair. I'm fairly transparent on things like this, and if it wasn't meant to be avoided, it wouldn't be a trap in the traditional sense. It would more likely be something akin to a rotating bookshelf, that swings just one person around to a couple skeletons or something instead of a 15ft pitfall (iirc only 1-2d6 damage) but I'm getting off topic.

Personally, I can't see the enjoyment with running just a bunch of back to back combats unless there was a narrative reason behind it, and I couldn't see the enjoyment in playing that either. I would be more than happy with running mostly RP sessions, but I feel like that would get boring for the ones not so interested in RP.