When I open the program it’s set to maximized as well it should be.
When I click on the effects menu arrow to scroll up too fast it acts like I double-clicked the window button to un-maximize and resizes the window and closes the menu. The latter part is more annoying than the window resize because where ever I was positioned on the menu undoes and I must click it again…carefully. Down works just fine, but the arrow at the top can only be clicked once per second. Any faster and it resizes the window.
Not sure if this has been reported or if a fix is in the works in the new pending release but it sure needs to be fixed.
Right after I posted I installed. 2.1.3. The issue as I originally described is fixed, yes.
But it still has some issues.
When you get to the top though the arrow turns grey. If you double-click then it still resizes the window to be smaller at the bottom.
Also, It’s interacting with the maximize button condition. If I resize the window to fill the whole screen then hit maximize
double-clicking the arrow on the effect menu will make the window bounce and shorten the bottom.
From your video it would appear that you are actually (somehow) running a very old version of Audacity - In 2.2.2 and indeed even 2.1.3 there is at the the top of the Effect menu an entry Add / Remove Plug-ins which takes you to the plug-in manager dialog.
I see no trace of that in your video.
Try using Help > About Audacity to identify the version you are actually running.