I like your game! It's really well excuted - art-wise as well as from a development point of view. If you ever want to test your abilities in a game jam, I can offer you to contribute my hand-drawn art. Having a good feeling that this would be a fun experience to jam with you.
Not all of them are implemented that way. But when ever I am taking the dev part, yeah, then the webtech stack is my choice. Have to restrict my games to certain mechanics, but slowly I am pushing the boundaries of what I can do with it, and what I already know is a solid base I can rely on blindly.