Hello @SallyK492 ,
The little back to original app option on iPhone is, as far as I've seen, just how iPhone works. Android doesn't have this option unfortunately, but generally has a pretty easily accessible window switch / close function through home buttons, sliding up from the very bottom of the screen, etc. This may depend on the Android device model as well, however, so there isn't any universal rule or advice I can provide.
Ultimately there's nothing that can really be done from your end or ours. This would come down to just how Androids function.
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