Honestly, I think we use Google docs draw more than anything else. I don't love it, but it is group editable, has a permission system, good comments, and we can

Honestly, I think we use Google docs draw more than anything else. I don't love it, but it is group editable, has a permission system, good comments, and we can just paste urls in tickets and design documents. Many engineers simply use the draw tool in confluence, too. Trying to draw in markdown doesn't work, obviously.