I’m not qualified to talk about dual SIM setups because I’ve never been in a situation that requires dual SIMs. I don’t know how I would deal with a dual-SIM life.
But I do segregate my personal and works apps on my iPad and iPhone. Work Life and Personal Life starts blurring in all areas. My iPhone has different Home screens. I keep the first Home screen full of work apps and stay there when I’m in work mode.
My second Home screen that has neutrals apps such as weather, health & fitness, and Day One.
My third Home screen holds all of my personal apps and social media apps. These personal apps are also stashed away inside folders. This makes it more cumbersome to go to these apps. I’ll avoid my third home screen apps because it’s cumbersome to swipe to go to the third screen and then open a folder to open an app.
Perhaps you can put the Outlook app on the first home screen (work) and go to that screen only when working?
I’ve started using Apple Mail for my personal email accounts and Spark for my work email. Spark is on the first Home screen (Work) and Apple Mail goes to the third Home screen (Personal).
Then turn off notifications for all email except for the VIP people.
I’ve also done this three screen setup with my iPad as well. Go to the first Home screen while working and then go to the third home screen when I’m playing.