A better analogy would be that when uninstalling Zoom it looks through all of your emails to find its email. It has no business being there in the first place.
I mean, if you had zoom installed on desktop you there's a high likelihood that you will use zoom again. By leaving that cookie, they are making the web experience better the next time you use it.
Then again, planting a 10 year cookie that can only exist when edited outside the browser's sandbox is a helluva effective long term marker for a particular person. Maybe they just want to keep tabs on you. :)