Zoom Recordings Size Discrepancies

Hello All.

We use Zoom Webinar for our training events.  I do recordings the same way each time.  The recording window is maximized when I start the recordings and stays maximized all the way through.  When I open the recordings later sometimes the windows are maximized and sometimes the widows are smaller.

Has anyone dealt with this issue and if so how did you resolve it?  Also for the smaller screen recordings is there a way to make those maximized without reducing the quality of the video?

Thanks for your help in advance.