Fun game! Some rules were not clear to me, i.e sometimes I was killing bugs when I did not expect it, maybe it's me, maybe UI hints what is happening would be helpful to catch up on a rules! Good job!
As for feedback, since you using Godot it's very simple to create OSX build. I can play in browser, but on mac it gets really laggy even with simple games like that, so I oftem just download builds through itch.io app.