Android Standard Encryption - Any limits for KoBo?

Dear KoBos,
we want to work with standard Android encryption (which is default in newest versions and can be configured for older smartphones)…
We would like to know:

  1. Does anyone know problems with this for KoBoToolbox?
  2. Can the ODK folders and data (and media) files still be copied (saved) with Briefcase.from the phone and also be uploaded via Briefcase to a server? Only in 2 steps (initiate copy on Android device to another device, then import from this into Briefcase)?
  3. Are there special problems for KoBo if the microSD card is also encrypted with Android standard?

We work with KoBoCollect, OCHA server and different Android smartphones.
Kind regards