App Store and Apple Arcade
Apple will now begin displaying recently-played games in the Arcade tab on the App Store so you can more easily pick up where you left off, which is a small but nice change for those of us who regularly jump between devices and want to pick up where we left off.
While you won’t see it as a user-facing feature, iOS 13.4 also lays the groundwork for a new class of universal apps that can work across both iOS and macOS, although developers will have to re-bundle their apps to take advantage of this.