Google Drive Power-Up and Member Access and Restrictions

[Seraphim Marcopoulos]

Hello all,

I've returned to Trello after a few years of using other products.  I am on the Free version for now and I'm considering Standard or Premium.

Question: 

If I enable a Google Drive or Box or OneDrive Power-Ups and link them to my personal Google, Box, or Office365 accounts what level of access to the respective cloud storage accounts will Members have?

Can Members be restricted to folders within Google Drive, Box, or OneDrive when attempting to add a file (or use the Power-Up generally)?

Would they naturally be restricted to any Files or Folders that have been shared with them within Google Drive, Box or OneDrive (outside of Trello)?

I don't want members to access the entirety of my drives.

Thank you,

Seraphim