No OBD update with Android Auto when app on phone is not kept inactive

🚧 THIS IS A TICKET MIGRATED FROM UPVOTY. The original ticket and comments will be available for a limited time over at:
https://abrp.upvoty.com/b/report-a-bug/no-obd-update-with-android-auto-when-app-on-phone-is-not-kept-inactive/
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I use ABRP with Android Auto and an BLE ODB2 adapter. ABRP is only getting the latest SoC from the adapter when the app is activated on the phone. After some minutes, ODB connection goes red on Android Auto screen and is not updated unless I pick up the phone and activate the ABRP app again.
All energy-saving settings of the phone are disabled for ABRP.
Running Android 12 on a Xiaomi Mi 11 Ultra, Skoda Enyaq.