Experts back Anthony Albanese’s cybersecurity advice, saying forcibly closing apps could stop criminals from monitoring users or collecting data
Interesting to hear such things discussed at that level. Turning it off is suggested to get rid of compromised background processes that might be spying on users. Obviously, this only help against malware that isn't permanently installed on a phone.
That was my initial reaction too, but I believe there is also a good amount of attacks that use 0-day exploits and might not have an angle for permanence yet.