Do my passport and address proof need to be certified for a Hong Kong company?

Usually not for the incorporation itself: you upload clear copies and we verify them during KYC. Banks set their own rules, and some ask for copies certified by a lawyer, notary or accountant, or for the original on a video call. If a document issued abroad must be legalised, an apostille is normally enough, because Hong Kong applies the Apostille Convention.

Certification and apostille

Source: Status table: Apostille Convention, Hague Conference on Private International Law (HCCH)