This is why I tend to lean more towards puzzles that test how prepared characters are and how well they know what their characters can do. And even then I usually have a longer/more difficult way around the puzzle just in case they can’t solve it. Like for example I have a magically locked door that they can try to get open but it would be difficult unless they have a spell or maybe getting lucky trying to lockpick it. However there is also a small cramped tunnel they can go down instead that will also get them past the door but will have some challenges along the way.
I just came up with a possibly acceptable middle ground of my own… Puzzle is intended for the players to solve, but if characters have an appropriate high mental stat or characters that roll well on an appropriate skill check would get varying degrees of hints or clues. Maybe? I feel like I’d have to try it to see if I actually like it or not. It feels like a sweet spot compromise, but still requires meta-game problem solving, but I feel like that is unavoidable - you can’t actually think with your characters brain, only your own. At least with current technology, lol.
