The betas for Android's next major update may not be too far away at this point. This version is the one now rumored to implement a feature in which a phone can respond to double-taps on its rear panel to open shortcuts. Android 12 is also said to add App Pairs, a new form of split-screen mode, as well as more effective third-party app-market access.
https://www.notebookcheck.net/Android-12-might-introduce-an-answer-to-iPhone-s-Back-Tap-feature.516850.0.html
That back tap feature is slow, when it works, it still needs some work for it to work just as reliable as swipes on the screen.