If we have cheap Android phone with lack of resources, when several apps are opened and you switch between them - each one is being loaded again (because device doesn't have enough memory to keep them all alive in background).
When using PWA this may be very annoying. For example I fill some fields in my PWA and have to switch to mail app to copy some data. After returning to PWA it's refreshing (and taking some time to become interactive again)...
Is there a way to prevent this behaviour and keep PWA always alive even when switching to other apps?