I reproduced after a time using clock, settings and several other apps. qmlscene here is the clock app. This is after pushing the power button to close the phone
hPID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
4636 phablet 20 0 299604 64924 35464 S 10.0 3.5 0:43.22 qmlscene
1033 9999 20 0 10904 828 488 S 9.7 0.0 0:32.37 sensors.qcom
7109 phablet 20 0 474588 72276 51880 S 8.0 3.8 0:08.55 webapp-containe
1038 root 20 0 8248 1624 1224 S 7.1 0.1 0:31.59 Binder_2
I reproduced after a time using clock, settings and several other apps. qmlscene here is the clock app. This is after pushing the power button to close the phone
hPID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
4636 phablet 20 0 299604 64924 35464 S 10.0 3.5 0:43.22 qmlscene
1033 9999 20 0 10904 828 488 S 9.7 0.0 0:32.37 sensors.qcom
7109 phablet 20 0 474588 72276 51880 S 8.0 3.8 0:08.55 webapp-containe
1038 root 20 0 8248 1624 1224 S 7.1 0.1 0:31.59 Binder_2