So first of all, great music and atmosphere. I won't repeat what others have said here since I think you already know that you're good work in this direction.
1. The loading screen at the beginning is definitely too long. You have to find a way to cut it down or question using blocking preloading at all.
2. When you open the menu/save/etc it briefly flashes the default RPGM BACK button. Seems like a visual glitch. I also notice the TOUCH UI option is there but mouse/touch support seems to be disabled ingame. Might want to remove it.
3. Always Dash seems to be by default OFF. I did a poll once with my playerbase and 90% always turn it ON. I would recommend setting the default state to ON. (Not sure if you even need the option)
4. There are some strange collision glitches. Example:
Feels like you should be able to move right here.
5. There seems to be a battle speedup plugin in the game but I don't seem to be able to trigger it. I use CTRL with in the OPTIONS menu configurable skip speed in my game and it's probably one of the most impactful QoL features for many of my players.
6. I liked the flavor items revealing hidden abilities on the cards.
7. Level design wise I felt like I was supposed to figure out the Rope section before fighting the "powerful enemy" (I assume that was the boss fight with the paralysis enemy?), so I ran around quite a bit to try and solve that puzzle, thinking maybe the flesh hooks or something could be used. Going into the Hospital to get Rope seemed a bit weird to be, maybe the design here could be made clearer.
I played until that part. Again, great work on the music and atmosphere side.