I’m not sure if there is already a topic for this but the other day I discovered an Instagram account called cultofkapura. All of the posts are rather strange many with random strings of characters, maybe urls or something related to that, along with the phrase “he is getting faster”. here’s just one of the posts to kinda show what I’m talking about.
I’d start looking around at its posts and who it follows to see if you can get any connections to anything, I’ve never done any ARG hunting either but it sounds rather interesting somebody’s doing a Bionicle one.
The “random strings of characters” are base64-encoded text, which you can decode with https://www.base64decode.org/.
edit: I went through and transcribed all the image-based strings so you can easily copy-paste them into the translator. It’s kind of a pain so I don’t know if I’ll keep doing it.