I work at a top 10 US financial institution. All devs/engineers and ux folks get issued macbooks as standard. Probably been two years now that this has been the case. Being able to use all the unix command line stuff, along with more reliable machines, longer expected life, and higher productivity (those M series processors rock) make it a no-brainer. HP zbooks only go out to the people that specifically request them or are reliant on the few apps that do not have either a web based option or macos equivalent (its going to be the web based option that solves this over time I expect. Prob not a lot of incoming ports).