It’s not in the documentation.
Therefore it is not supported for use by third party developers, and as such it can change or break at any time.
There is no officially supported topic for follows.
Helix/kraken makes no difference, when trying to listen to pubsub.
Both kraken/helix will return the same UserID/channelID.
So this shouldn’t make a difference when trying to listen on the channel points Topic. So I’m still unsure as to why you are having a issue.
Since I didn’t call helix or kraken at all in my calls