[Q] Found out a possible ad services, how to remove it? topic

Recently my phone has keep popping up ads that take over my screen, and I have used so many ads detector and antivirus and i couldnt found out what is happening.

Then i found out a suspicious service is running in the background and it seems if i disabled it, the ads wont pop out, which is "com.google.devices", i wonder how do i completely remove a service?