IssueTracker

Or, just have the UI ask the user while adding the networks, if it's ok to let it stay, as I've suggested here:
https://issuetracker.google.com/issues/136787263

Checking for bugs. Mobile isn't working properly

Please provide following information which will help us to investigate this further,

* What is the desired behavior of the feature? (Be specific!)

* If relevant, why are current approaches or workarounds insufficient?

* If relevant, what new use cases will this feature will enable?

@4
* What is the desired behavior of the feature? (Be specific!)
 allow added networks to stay after app gets removed, if the user allows it

* If relevant, why are current approaches or workarounds insufficient?
Old way to add a network is becoming deprecated, so sooner or later all apps will have to use the new API.
So no workaround that can sustain itself.

* If relevant, what new use cases will this feature will enable?
https://developer.android.com/reference/android/net/wifi/WifiManager#addNetworkSuggestions(java.util.List%3Candroid.net.wifi.WifiNetworkSuggestion%3E)

"When an app is uninstalled, all its suggested networks are discarded. If the device is currently connected to a suggested network which is being removed then the device will disconnect from that network."

Please let the user still have the networks that are added.
Provide an API and UI for this to be possible.

Maybe an Intent that will ask the user if it's ok to let it stay.

Maybe, when an app wishes to add networks, show a dialog with a list of them to the user, and have options:
1. deny
2. accept
3. accept and let configuration persist (meaning it will stay even after removal of the app).

We have passed this to the development team and will update this case with more information as it becomes available.

We are considering an intent triggered UI for apps to ask users to save networks provided by the app into the saved network database (a dialog of some sort for users to accept/reject the app's request). Once the user approves the request from the app, these networks will be saved as though the user saved the network via settings. So, even if the app is uninstalled, the network will remain on the device as a part of user's saved network list. This is being considered for the next Android desert release.

@7
Next, meaning after R ?
Why not now?
R isn't so near...

Also,  "next Android desert". You mean we will get new names of deserts?