Yes to saying no. No to saying why. It's perfectly acceptable to have an intense dislike for a piece of software, and to go so far as to discard potential role

Yes to saying no. No to saying why. It's perfectly acceptable to have an intense dislike for a piece of software, and to go so far as to discard potential roles to avoid it. But I think people may think you're a bit weird if you come out and say it. Also, I doubt it'll make any difference (decisions to use Zoom vs Teams usually come from above, and I doubt the hiring manager would feel comfortable telling his manager that they lost a candidate due to a software that the higher-ups chose...)