Especially – and funnily enough – in business contexts, where you need to run software which are each only available on either Mac or Windows, but not both.
Do you have any examples? I was running VMWare Fusion until about 2015 for my office laptop for Visio and Project, at which point I felt no need on my next refresh to simply not request it due to cloud-based alternatives.
Yes, the NURBS (surface) modeler "Rhino" is one – or rather was; meanwhile it got a Mac version, but that one still has no feature parity, so you would still see this running in Parallels somewhere, I guess.
Especially – and funnily enough – in business contexts, where you need to run software which are each only available on either Mac or Windows, but not both.