I too want to agree I find myself quite often expanding canvas beyond of what I’d want to be the crop of the final image. I have no issue with that, problem arises though, that every time I want to export my image, I have to crop canvas just for that and redo it every time I want to modify and export again.
I think a nice thing to resolve this issue would be to add render camera. User would be able to mark certain area of the canvas that would be cropped to when exporting finished image. That way you could have things outside the “canvas” and still let user to choose how much of rendering performance they want to sacrifice for that.
Having that, in the future it could be expanded to cover another issue of 2D Camera movement in animation.