I posted this elsewhere, at the end of an old thread on this issue, but then I decided it might be better if I posted it in its own thread!
My new favorite way to upload to Instagram from your PC or Mac, without using a mobile device and without using an Android or iOS emulator: I use the web browser named Opera. In the left-hand panel of the browser, you will find an Instagram emulator, which you click on. The first time you launch Instagram from within Opera, you will have to sign in to Instagram, of course. Then click on the + sign at the top of the Instagram window to upload photos from any folder on your PC or Mac. So of course, you still have to export the photos from LrC, but you no longer need an Android emulator like Blue Stacks which I had been using.
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