I was able to get PiP with Maps Navigation which was neat!
PIP works for Google maps
PIP is not working for Youtube and chrome .
Step 1 :
Type PIP ( Picture in Picture )
Make sure apps are enabled
start google maps
click on Home screen.
Google map should come in pop up window .
Hope this helps
Here is how to use pip with google chrome browser; click on a video link in chrome (other than a youtube video, interestingly youtube videos does not open in pip pop up window). swith video to fullscreen mode, then click home button. vois la! you just have chrome video in pip.
(i tested with turkish video site, izlesene.com just worked fine)
PIP works on Nokia 8, but for Youtube you need a Youtube Red subscription.
Try Google maps, VLC - PIP works.