Not supported in the UK, EU, or India. Caveats apply. However, if you have a primarily purchases-only account, you can now transfer its purchases to a primary account, so that iCloud and purchases can live, as they should, under one roof. See Apple's KB article on this for details.
https://support.apple.com/en-us/117267
By Sebby, 12 February, 2025
Forum
iOS and iPadOS