I started by resetting my progress so I could experience the updated version fresh.
I like the addition of the cutscenes. It helps add more to the immersion of the game. The story is rich and draws you in, but adding the art helps add to it.
I played through to the second boss, where I lost. I did not do well dealing with those shields, and need to rethink things next time. I enjoyed playing and look forward to your continuing updates.
Good luck with the Godot update. We started updating some small jam projects back when Godot 4 came out, though it wasn't until around Godot 4.3 when we were really happy with the process for one of them. We've very much enjoyed working with Godot 4 over 3. With all the work on nice to have editor improvements I can't imagine going back. Working on both version must have been confusing at times as you try to keep track of the differences.