I've great news for those users who have migrated from Photoshop Elements to Photoshop and vice versa:
When you buy one product or download a freebie, you'll get a zip file that contains both the Photoshop and the Photoshop Elements add-on editions.
If you bought any PanosFX product during the past 24 months (since January 2019) you can download the latest file version for free. It contains both the Photoshop & Photoshop Elements add-on editions. Refer to these instructions to re-download your products.