Yep, dual sim is a thing. However, my employer wants full control of the phone so they provided an iPhone. (I’m an Android user) The biggest pro of 2 phones is that you can silence the work phone outside work hours.
With my 1st temp job ('99) I told my boss that the best feature on the work phone the power button was. The moment I left the building it would be turned off. Alas, those modern phones have a complete sequence to go trough to get them off, so I now use the automated do not desturb. Alas, iPhone has only times you can set daily, instead weekday dependent times. Between 18:00 and 7:00 the thing is quiet, no exceptions.