@johncoxon I had the same question (found out it wasn't available by trying...), but looking it up, I don't think this is in the hands of Riley & Shane, see https://9to5mac.com/2024/01/26/ios-17-app-stores-and-more-ipad-changes/
It's a slightly old article (Jan 26th). It states that Apple wasn't forced by the EU to support alternative marketplaces on iPad(OS), so they probably won't.
You might still be able to use the AltServer version.