Get the latest tech news
Google's latest Chrome Custom Tabs feature might add Picture-in-Picture support
The Picture-in-Picture is being tested in Chrome 122 on Android.
You might know the Picture-in-Picture feature from media apps like YouTube or streaming services, as it allows you to minimize content so that it remains visible while using your smartphone. Chrome Custom Tabs are what Google calls the mini web browsers that appear within other apps when you open a link. When you want to go back to the page loaded in your Chrome Custom Tab, simply click the fullscreen icon in the Picture-in-Picture window.
Or read this on Android Central