Per my thread here Add / Remove Plug-ins dialogue box is too small - Audacity Forum I find the height of the Manage Plug-ins dialogue window (Add / Remove Plug-ins…) is too small - only showing about 4 plug-ins. (On my linux installation with a high DPI screen - I see it’s a bit larger on Windows.)
Even on an average-sized screen, the window could be quite a bit higher by default.
But the easiest thing to implement would be remembering the user’s previously selected window size when this dialogue was last closed. Could that be done?