The basic groups for organizing subscriptions are free. If you want extended features, you should become a patron. It takes time to update the extension every time YouTube changes internally. The link to Patreon features is clearly available in the description. We have no way to force you to read it if you installed it before opening Patreon.

Furthermore, the decision to keep some features for the Patreon version of PocketTube was made to ensure the long-term feasibility of the free version.