FWIW, when I download the 2.7.2 update from Plugin Boutique, the selected OS changed from Windows to Apple after I selected the new update. I thought this happened on 2.7.1, and I confirmed it today.
Not a big deal, but if you don’t catch the switch, you get to go through the download twice and we know how some of us love long download times. 
Windows 10 / Edge
It happens to me almost ever…
And I repeat the same mistake almost always
errare è umano, perseverare è diabolico
I don’t understand why PB cannot memorize the OS of each user
It does for me. All of mine are set for Mac whenever I go there. There were all set for Windows originally. I use Brave Browser.
it likely does because their default is MAC, regardless of the user
That’s not true. Anytime I buy something the new download always defaults to Windows and I have to change it. But now it seems to remember my choice,
yes, it remembers your last choice, so now the issue is fixed