Command_screen_timeout not working

Dear reader,

Depending on wheter i am navigating or not, i would like to adjust the screen_time_out on my OnePlus 15 (running Android 16).
The yaml-part that is adjusting the time-out is very simple and posted below:

  - action: notify.mobile_app_name_of_phone
    data:
      message: command_screen_off_timeout
      data:
        command: 15000

In the tracing i can see that the yaml is being executed without any errors. I also checked that the “allow systems settting” on my phone is granted for Home Assistant. I also have some other commands (for example for screen brightness) that all work fine. This one however, despite of getting no errors, just doesn’t work: the commands are executed but the screen timout is not adjusted.

Does anybody know if this is a restriction from Oneplus or that i overlook something that makes the command fail?

Thanks in advance,
Jack,