When I first read your GDD I was curious to see that the player would be effectively something the player works around instead of controlling them directly. It makes me think of a "Reverse Stanley Parable" or "Bongo Boom".
Some of the phrasing was direct or succinct but gives little specifics into how the game is actually played. I could imagine a few controls for it personally but everyone's imagination is different. Specifically describing the kinds of things in an environment the player will be able to control around the character and what interfacing they would use to do that is a place to start.
The mention of NFT/Web3 integration only made sense to me because I'm a Web Developer but that reference or intent may not be received well by most people. Even then I'm not exactly sure what support plan would be in place for such an integration into the game; that space of tech is a delicate and volatile matter to delve into.
Still, your overall premise of a game where the player controls the environment rather than a direct player-insert character is intriguing. With some more specifics, maybe a sample level presentation/walkthrough and details about a Web3 tech integration lifecycle it could become something unique.