It is worse than that. Mobile, and iOS in particular, is a second class operating system platform. Your device and data can be taken over by a text message that someone sends you, and you don't even need to open it. That's bad. Look at some of the Black Hat presentations about the number of zero day vulns for imessage in the previous two years.

You Shall Not PASS - Analysing a NSO iOS Spyware Sample https://www.youtube.com/watch?v=wAmGU2YUa9Y

https://citizenlab.ca/2023/09/blastpass-nso-group-iphone-zer...

https://www.darkreading.com/vulnerabilities-threats/apple-ze...

https://www.infosecurity-magazine.com/news/apple-update-extr...