Therefore it makes perfect sense to say that the OSA is at least in part about regulating sites with a significant influence over public discourse. I find that at least somewhat alarming; is the "incredibly misleading" part that this is not all that the OSA is about?
(For reference, a rough description of the Categories are: you use a recommender system or allow sharing the site's content (1), you're a general-purpose search engine (2A), or you allow DMs between users (2B). Source: https://www.legislation.gov.uk/ukdsi/2025/9780348267174 )