Hello!
We're grateful for your participation in the Apple Support Community.
You can't selectively transfer only certain apps and their data when setting up a new iPhone. Your suggestion for more flexibility in app and data transfer is valuable and might be considered in future updates. If you'd like, you can submit a feature request to Apple. Apple takes feedback seriously, and if enough users have similar concerns, they may consider implementing this in future updates.
For those who prefer English, we have an exclusive community available at discussions.apple.com. As your post is in English, we cordially encourage you to join our English-speaking community there.
Thank you!