On 5 November 2025, the London Gazette included a notice which stated that:
THE KING has been pleased by Letters Patent under the Great Seal of the Realm dated 3 November 2025 to declare that Andrew Mountbatten Windsor shall no longer be entitled to hold and enjoy the style, title or attribute of “Royal Highness” and the titular dignity of “Prince”.
On 5 November 2025, the London Gazette included a notice which stated that:
https://commonslibrary.parliament.uk/research-briefings/cbp-10370/
Fair enough, thanks! I’ll edit my initial comment