TL;DR
MKBHD is shutting down the Panels app at the end of this month, citing issues with finding the right development team fit.
You can no longer buy collections, and you must download existing wallpapers before the app is removed.
Users will receive automatic pro-rated refunds for active subscriptions, and the app code is promised to be open-sourced after shutdown.
amusing thing is that when it came out someone ripped all the wallpapers from the app and put them online for free. most of it was AI slop anyways.
Haha yeah they were in like a Google cloud folder the app would call to to retrieve them. They were available for free the same day it released