I’ve tested wifi calling on AT&T, Verizon, and T-Mobile. How well it works (call quality, whether or not the call gets dropped, how often it gets dropped) has always been a crapshoot. Using a real VoIP client to connect to my Asterisk box? Significantly more stable and usable.
When I could get away with it at work, I did.
In the last… I want to say six or seven years, issuing Macbooks to sysadmins has been a common thing in the sectors I work in. Rather than put up with us going rogue and messing up license tracking by rebuilding our stuff with a distro of choice, management just throws OSX at the problem (us, we’re the problem) because operationally it’s close enough for our purposes.
It’s not my choice or preference, but the money’s green.