The patched build is now tagged as windows release and should be accessible with the itch app.
A tutorial is a good idea and will be added in a later version, as for obstacles, not sure if it fits the vision. There are more mechanics planned but enemies and traps are not on the list so far.
I went a bit overboard with the amount of plant spreaders/watering spots... this will also be addressed at a later version, fewer spots to start with and then the ability to expand.