Comment 6 for bug 1977660

I don't understand the details of the behaviour it seems an issue with power-profiles-daemon. And yes if the profile fails to change the settings should display the error but it's not clear to me if the service fails or if the action doesn't reflect as you expect. The mentioned ticket seems to discuss details on how the profile impacts performance exactly on some lenovo laptops and also suggests there might be firmware issues on some of those machines