Can someone please answer my question? It’s been almost two days and I am no closer to an answer than before.
Please post the url to a relevant product page.
To be sure I understand the problem, please confirm that you have uploaded gallery images on the product edit page where shown in red here, and that you can see them on the product edit page:

Yes I can. That is completely 100% correct. That is what I see.
You’ll need to identify which software element is preventing the gallery images from showing up on the product page.
Deactivate all plugins except WooCommerce. Do the gallery images show on the page now?
If so, reactivate plugins one-by-one and check.
If not, switch to a default theme, say Storefront. If you see the gallery images with Storefront but not with your theme, then you have narrowed the problem down to your theme.
Ah hah! It is the theme that I purchased. These folks said they were compatible with WooCommerce but apparently they are not. At least now I know which tree to bark at! Thanks again!