I have found a fix but it might come back and you'll have to do it again but if you hold your power button to power your phone off the bottom choice is emergency mode and click on and enable and then close out screen and then go back in and do the same thing but disabled emergency mode and you...
Open chrome, put YouTube.com, on top right 3 dots click and choose request desktop site, pick video to watch and start video and then full screen and then click home button and there you go picture in picture without having YouTube red
I had to get a new cable as I found that there is 5 connection prongs on the cable and people are finding one is breaking off and it must be for fast changing as it still works for slow charging but also shows the usb settings that usually showed up when connecting to my computer.