''Starting in 2023, Ford and Red Bull Powertrains – the Milton Keynes team’s dedicated engine division – will develop a next-gen power unit to supply both Red Bull Racing and the sister AlphaTauri operation from 2026 until at least 2030.''
https://www.formula1.com/en/latest/a...C79l1YQ9b.html
So a few years to get good before its all proven in battle. Its a long run up.