Eventually the home button iPhones will go away so it wouldn’t be such a novel idea to standardize the gestures even though one of them would be redundant, i.e. swipe up/press home button to go home. Or at least put it in settings as a choice. Fwiw there’s two ways to invoke the app switcher on the SE: double press home button/press along edge of left bezel and screen.
Edit: it just occurred that you can duplicate multiple interactions with the Back Tap feature introduced in iOS 14.