You should be able to disble those apps for your user with adb without root: adb shell pm uninstall -k --user 0 com.[miui,android,xiaomi].<appname> Have you

You should be able to disble those apps for your user with adb without root: adb shell pm uninstall -k --user 0 com.[miui,android,xiaomi].<appname> Have you investigated if xiaomi.eu firmwares successfully curtail those connections?