The two comics were linked pretty definitively, not just obviously by the similar drawing style but some other circumstantial stuff. The identity of the individual behind either one was previously unknown publicly.

Here's the write-up for those curious and don't want to deal with character limited posts (c/w it's got a lot of comics this chud made at the beginning I guess in case anyone unfamiliar lands there) https://accollective.noblogs.org/post/2024/03/12/stonetoss-redpanels/

tl;dr "Red Panels" had an account on Gab, from which a lot of data got big time leaked in early 2021, and it was registered to an email from which everything else comes together. So this was waiting to be revealed for a long time now.

Here's their official mirror

https://accollective.noblogs.org/post/2024/03/12/stonetoss-redpanels/