My head is spinning from all the new hassles and complexities involved in liquidating gift cards these days.

A (relatively) simple question. I have a couple of Chase Freedom cards that I want to max out this quarter's supermarket bonus spend. My plan was to buy $500 variable gift cards at a supermarket and turn them into money orders. In the current world, are there "better" supermarkets to buy these cards at? I assume I don't want to buy cards that are issued by BHN because they now seem problematic. Correct? I thought I recall the Albertsons chain dumping BHN for somebody else a couple years ago. Is that true, and are those cards less likely to be "not authorized" for a MO transaction? And if I shop at other chains, what am I looking for on the card wrapper that tells me it's not a BHN card -- assuming that's what I want to avoid?