All OS Do you carry a separate work and personal phone?

Yes, also using Samsung Private Folder / Knox based isolation. Phone is mine, 1 sim company's which is open when screen is unlocked, other is personal sim in secure folder together with personal apps requiring more security.
My One private number used only for banking and transactions is always disabled.
Using that only when required to make any kind of payment or check accounts or other financial apps for otp etc.
 
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