I would highly agree with this. I always wanted something slightly better than Preview, but not Photoshop (and all that encumbrance). Pixelmator is pretty amazing for quick edits and adjustments.
Literally exactly the same place I was. I needed more that just resizing and minor/basic edits in Preview but I couldn't stomach $21+/mo for something I used 1-2 times a week at most and sometimes go months without using.
It's really confusing because the names are so similar, but I believe Pixelmator is still a one-time purchase, it's just Photomator that is a subscription. Completely agree on these subscriptions prices being way too high for very infrequent usage.