User Experience VR Headsets for Technicians

We are looking at buying a large number of VR headsets for our service technicians. These are the headsets we have in mind:

HTC Vive Focus 3 Pico Neo 3 Quest 2 (probably a no because it requires FB login)

Would you add any to this list? Also, if anyone has 2 or 3 on this list, and could compare and contrast them from a user-experience perspective? A lot of technicians will not be familiar with VR, so we want something easy to use.