The first warning sign was that the loading screen references mouse controls but the mouse isn't enabled in the menu. There are some games that have keyboard menus, but those generally don't use the mouse and this game does.

The second warning sign is the fact that you see three loading screens before the tutorial starts. Wat.

The third warning sign comes in the form of one of the most idiotic tutorials i've ever seen. It doesn't actually tell you the controls. I had to exit the tutorial -which resets it-, go to the menu, find the weird icon they use for settings (if you're only using icons at least use recognisable ones) and look up how to throttle down. I figured out throttle up was Space. Throttle down is... Left Shift?

I ragequit the tutorial (lol) because it had me hit a bunch of rocks after i already hit a bunch of rocks. After yet another loading screen the game finally starts. And it's awful. Get this.

It's a flying game. Using keyboard controls for all movement.

The last time i had to aim with the keyboard was probably in Doom (1993). For the past quarter of a century i've aimed at stuff with a mouse. And this game doesn't even let you do that, the mouse is only used for two buttons (dive and something else). Do you know how incredibly uncomfortable that is? It's an insane choice, especially for a game that's supposed to be relaxing. WTF.