Can't get the floating font box to move

That's the Contextual Task Bar.  You can turn it off at the bottom of the Window menu.

You have other options if you click on the three dots on it's right hand end.

in the future, to find the best place to post your message, use the list here, https://community.adobe.com/

p.s. i don't think the adobe website, and forums in particular, are easy to navigate, so don't spend a lot of time searching that forum list. do your best and we'll move the post (like this one has already been moved) if it helps you get responses.

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