Checked by myself.
The vpn closes on all devices I've tried the app on inlcuding an LDPlayer 9 instance, a VMOS Pro instance aswell as my own real phone device.
Proof:
Emulator, LDPlayer 9 Version 9.0.66(9) (Android 9) rooted + patched
Phone, Xiaomi Poco F3 (Android 13) non-rooted + non-patched
Virtual Machine, VMOS Pro Version 3.0.0 (Android 9) rooted + patched