Yep, Apple’s breaking iPhone web apps in the EU
www.theverge.com
Apple says web apps from third-party browsers are a security risk.

Apple is officially dropping iPhone support for web apps in the EU - The Verge::Apple will no longer support web apps in the European Union in iOS 17.4. The company says building the feature would be “impractical” on top of the other changes it’s been asked to make.