Apple brings age verification to UK users in iOS 26.4 beta - Users who don’t verify their age may not be able to download or purchase apps.
(www.theverge.com)
Buy a used one then. Google won't see your money then.
Or wait a little longer. https://piunikaweb.com/2025/11/19/grapheneos-to-release-non-pixel-flagship-phone-in-q4-2026-or-in-2027/
In a revealing discussion with David Bombal, the GrapheneOS team confirmed they are actively working with a “top-tier Android OEM” to bring their hardened operating system to non-Google flagship devices.