MadalinStroe: I haven't played the game, but I remember reading about it, and the reviews on STEAM complained that the game might seem to allow creative solutions to the puzzles, but it fact it's quite strict in what you can do. This is the very reason I don't like most puzzle games. If you can't figure it out outright, it's usually because you missed/forgotten/misunderstood something, and at that point it becomes impossible.
The base game was not really restrictive. I'd say quite the opposite. I finished all 30 levels and in 5-6 of them I'm pretty sure my solution wasn't what the author had in mind.
In fact there were a few achievements on Steam that were of the type: do level X without wheels. Or do level Y without such a component and people came up with clever solutions. I was watching some solutions for those achievements and people came up with various creative ways.
What the people complained about was that the game was too short. And that's true. 30 levels, but can be finished fairly quickly. The author listened to suggestions and released an expansion: 10 levels that are way harder. But it seems it was taken to the extreme. I'm stuck on level 2 after spending 6+ hours on it.
https://steamcommunity.com/app/433890/discussions/0/343787283764495740/
Surprisingly there are no guides at all regarding the expansion. I just found a video of level 1 which I finished already (and in a neater way), but nothing else.