I'm writing this on behalf of a client of mine who has been experiencing this issue over the past two weeks or so.
The "Action required in Play Store" notification from GmsCompat appears. Upon clicking it, the Play Store opens up and displays a prompt to install an app called "Device Configuration". It has the generic icon of the white Android logo on a grey background.
This seems suspicious. I've never seen this happen on my own phone, nor have I seen it on anyone else's, and I can't seem to find any information regarding this prompt anywhere else. I've instructed my client to hit cancel on this prompt every time it shows up until I can figure out what's going on.
Does anyone here know what might be happening?