Download YouTube videos for personal use to your iPhone or Android device – Ashampoo
Amazon.com: 7RYMS RimoMic Lite LN Wireless Lavalier Microphone for iPhone iPad, Wireless Mic IPS Display Screen Plug & Play Lapel Microphone Wireless for Video Recording Interview Live Steaming YouTube : Musical Instruments
So apparently YT has enabled PIP on iPhone with the latest update BUT it's only for live broadcasts. 🤦🏽♂️ How about make it for ALL videos. : r/ youtube