I thought we would be getting work phones since we are forced to download a bunch of apps and actively use our phones at work, but apparently not. So I am using my 14 pro max only. The only reason I would have two is if I had a dedicated work phone. Since we got the no on work phones I have toyed with the idea og buying a used 11 or se for work so that alle apps/emails/teams are on that phone and not taking up space or battery on my 14 pro max. But it seems a waste to spend money on that ultimately
Something else to consider on "work" phones; they usually have separate security and that security may be substantial. There could also be legal issues depending on the "work".
For that reason I keep mine separate.