Before posting a bug/feature request, I'd like to pick the #fediverse's #Thunderbird users minds:

Why does the reminder dialogue in Thunderbird waste so much space? I've got my online meeting passwords in the meeting description. Instead of just showing the "Details..." link, it should simply show the description if it's short, or just expand the description in the dialogue without opening a new window.

Why is this a problem? My online meetings are recurring meetings. So if I want to get my meeting PIN, clicking on "Details" I first get a box asking me whether I'd like to *edit* this occurrence or the whole series.
But under "Details" I don't necessarily expect editing, I expect the longer description field.