First off, WOW! I can already tell that this will probably some day become one of my favorite games, you are very good at level design and also character design based upon your devlogs. I cannot wait to learn more about Gabbie and her story!
Secondly; I offer some criticism and possibly valuable information to help improve the game:
1: I, at least, find Gabbie very hard to control in the air. Again, this could just be me, but she seems to just fly off in her own direction.
2: Sometimes the double jump and/or air dash just dont happen, even when they should; in addition, I think you removed the stomp move, where she will descend rapidly? I do not know, all I know is that I could not figure out how to control it and it would have been useful.
3: I think it would be better for the Wall Run to be controlled by user input, as I would often get stuck in places because she would repeatedly auto-run on the walls. Inversely, sometimes she just would not wall-run, even on a wall tall enough for her to.
4: It is very difficult to locate the checkpoints in the Interchange, maybe have an arrow point where you are meant to go?
5: It might be a good idea to have an effect of some sort on things you can grind on, as sometimes it is hard to find them on lower video settings.
6: To me, the run animation feels slower than the skate animation, I say this because you changed it for the opposite reason, and also, sometimes she uses the skate animation for a couple frames when you begin to run?
7: I feel it would be more intuitive for her slide and air dash to be the same button, as I very often would press the wrong button when trying to do either, as my brain considered them similar actions.
Overall, this is a great game that shows great promise, I just feel that these few things could be minorly tweaked to make the game a bit better.
I wish you luck with this game, and look forward to its eventual release!