Most of my returns are now UPS Drop Offs. Rarely Whole Foods drop offs. Why?

I’ve been an Amazon.com prime customer for 20+ years. When I’ve done returns, I’d say 80% were Whole Foods drop offs, 20% UPS store drop offs.

Over the last month, I’d say 80% of my returns are now UPS Store drop offs, and 20% Whole Foods drop offs.

What gives ?