Not entirely correct in EU (or more precise, countries that are members of EASA).
A C0 and C1 drone under 900 grams, have practically the same restrictions (or lack of), and can be flown under the A1 category as long as you have an operator ID...
DJI Vision is the correct app for the P2 Vision.
But it is an old app, maybe it is not fully compatible with new Android OS. Try to find an old phone with older OS, and see if it works.
Try downloading the app directly to your phone from DJI...
You can download some raw files here, but you need to sign up with an email address:
https://jvn.photo/dji-mini-5-pro-vs-mini-4-pro-compare-the-raw-files-yourself/