Thank you! :D I'm definitely planning to migrate the project to Godot 4 at some point after the re-write, possibly for v0.3.0?
Using Godot 4 will allow me to fix some of the more ingrained bugs in the game, and it has new features that I really want to use ASAP (for example, support for right-to-left languages), but right now the focus is stability. When I started the re-write Godot 4.0 had just come out, and considering how buggy it was at launch, I decided to stick with Godot 3 for v0.2.0.