I agree with other comments posted. A few other things:
- The 3D models are pretty good, ambience is pretty good.
- I'm a normie gamer and am not used to using my left hand for movement AND picking up items AND sprinting. It's too much things for me, especially since I only seem to use the mouse click for firing weapons.
- As others have said, the jumps feels floaty and I got caught on ledges.
- Have some acceleration for starting and stopping movement, it feels too jerky now
- Add some screenshots on itch so when people are browsing the submissions they get an idea for what your project is
All in all it has a lot of potential, great job!