Google will postpone sandbox in Android Q

Google planned to implement Scoped Storage’s revolutionary security system in Android Q, but was forced to retreat, as company executives felt that application developers would not have time to remake the software for the updated requirements in due time.
Functional, very similar to the "sandbox", would give each program a certain place in memory, and limited access to confidential information and databases of other programs. Thus, malware could not get protected data under any pretext, unlike the current situation, when giving some program access to save the file in the device’s memory, you can potentially open to fraudsters all the data stored on the device.
Google does not cancel the release of Scoped Storage, but only takes it to a later date.