This was the vision of the OSA: a grift to tax big tech in general and surveil everybody and everything.

Companies with QWR above a particular threshold to be set by the Secretary of State will have a duty to pay fees under the regime. Ofcom has recommended that this threshold should be at or above £250 million, although it considers any figure between £200m and £500m would be appropriate.

Ofcom has recommended that the Secretary of State exempt providers of regulated services from payment of fees if their UK referable revenue is less than £10 million. ‘UK referable revenue’ is the revenues of a provider which may arise anywhere in the world but is attributable to the provision of one or more regulated services to UK users.

https://www.pinsentmasons.com/out-law/news/online-safety-act-fees-penalties-revenue