Yes, but most of these national apps I mentioned are already phone number based.
I also hate this. Phone numbers get recycled by operators, they are not owned by user, they just get assigned.
Not to mention sim swapping and privacy leakage by design.







You can check out LabLog app on f-droid.
You save key value pairs, where you define keys yourself. And values can be text or photos.
I made the app, so if you have any questions I will be happy to help.