From android developer website, https://developer.android.com/distribute/best-practices/develop/64-bit it is clear that starting August 1, 2019, apps published on Google Play wi
tl;dr
Unity Technologies' User ScottF (1) confirmed with Google representatives:
"...you would indeed need to drop x86 in order to be compliant with their 64bit requirement."
I've personally dropped the support today for x86 in Google Play Store for an Android App built with Unity. I've just got a warning that I will lose support from 2 devices from a total a 10867 previously supported.
Some extra info:
Source:
1 - https://blogs.unity3d.com/2019/03/05/android-support-update-64-bit-and-app-bundles-backported-to-2017-4-lts/
2 - https://forum.unity.com/threads/wheres-the-unity-stats-page-gone.514106/
3 - https://forum.unity.com/threads/android-x86_64-support.711869/