I was surprised to hear not to use a speakerphone for Zoom interviews.
I work from my home office, or my own office in the company, and use a Jabra SPEAK 510 (USB). And I always get the feedback that my sound quality is much better than of anyone else.
Can someone explain why it is not recommended to use a speakerphone? I can imagine, if you're working from a cubicle or in a busy area, then it's not a good idea. But I cannot see generic disadvantages.