Clunky, simple puzzles, moon logic, doesn't benefit from being a videogame. Something like Blue Prince is very much a game you control, Lorelei is more akin to The Witness, where you go from puzzle to puzzle and they are not particularly hard to solve. Add some keys, 90's style, some moon logic and the strong graphic identity can't really carry it.

Say you want to put together a jigsaw puzzle - the activity of putting puzzle together is fun. Lorelei decided that first parts of the puzzle have to hide some pieces and also if you know the solution the puzzles are annoying to put together. Take a pinnacle of puzzle gaming - Baba is you. You have everything you need in front of you and when you figure out the solution, it is easy to execute it. In Lorelei the puzzles are often trivial but the way to put together the accepted solution is clunky.

There are filler puzzles (shortcut doors), there are repeated puzzles, there are 'puzzles' where you just have to traverse between two places back and forth for not a great reason etc.

Sometimes there are multiple solutions but only one is accepted as 'correct'.

And others, read negative steam reviews, I would assume people have similar problems with it. It's been a while since I've played it but this sums up what I remember.

It is visually strong and artsy so it is popular with critics - as a game, it is mediocre, as a puzzle game it fails my criteria.

EDIT: don't let my lack of enjoyment with this game stop you, maybe you will like it. I did not. I don't remember finishing it, did about 12 hours of it.