Possible to not loose screen content when changing apps ?

Hi

When changing the foreground app via the taskswitcher, the new foreground app most of the time (if not always) has to reload/rebuild it's screen content. For example à web browser has to reload it's page (from the internet). This is slow..

Is there a way to configure things in a way that it keeps it's page in memory so that when switching back to the app, no reloading is needed ? It would make task switching à much more fluent expérience...

How to do this please ?

Thanks

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