With AC24 there seems to be a new Bug Report interface, which at least visually looks much improved over the previous version.
Unfortunately, though it seems that on macOS you can not opt to quit or cancel the new Bug Report without submitting a report... ironically for us only 'Force Quitting' the Bug Report seems to work for us.
Thank you for the suggestion! I passed your request to the designer. I hope that we'll be able to create a better UI for the Bug Reporter in the next releases!
