You mean the mini player while being in other apps? I do that on iOS all the time. As for emulators. Yeah. That’s not easy on iOS. Doable. But def not as easy as on Android.
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Temptress Cerise
Jayro
I'm proud of you for finally joining the Dark Side of the Phones. Android is cooler than you'll ever know. (More intuitive to use too!) Not to mention the lifted restrictions you'll no longer be facing, and the levels of customization are out of this world. You've got the full power of the Linux kernel at your fingertips! Congrats on your S20 Ultra! 