maybe she’s there with a gift card she got given and a laptop that was also a gift?
Also my work computer is a Mac, now, and was also when I worked for a print and design company years ago.
maybe she’s an artist and Macs are often considered de rigueur for image and movie editing
maybe she’s not very technical, grew up using a Mac and is sticking to what she knows, who are we to criticise someone for not being skilled at tech, when we are not skilled at javelin throwing, or glass blowing or pointilism or whatever.