As many of my fellow sellers, I do have a Pattern Site in which I do sell as much as my Etsy shop.
I do not understand why Etsy and Etsy developers don't pay any longer attention to the Pattern's site structure and updates. It looks like Etsy just trowed the towel on Pattern.
The Pattern site needs attention, the thumbnails must have the same ratio and the listing image should change accordingly to variation selected.
At least the basics should just be a clone, because I don't have much spare time to adjust on both sites...and I truly dislike approximation.
Please do something about it. Thank you
Sadly, Etsy gave up on Pattern tech support quite a few years ago. I stopped my subscription in 2022.