Well, yes, they can watch over categories and answer questions in them, watch for vandalism, etc. but they choose not to mainly focus on a few categories in specific, unlike Category Supervisors. Rather they choose to roam around, hence the name.
(See the Related question.)
The only thing a Category Supervisor has that a Floating Supervisor does not is something on their profile that says the category(ies) they supervise, the category supervisor badge, and their username on the category that they supervise. Floating Supervisors and Category Supervisors still have the same super powers and abilities - Category Supervisors just have the fame of supervising a category, albeit it takes more responsibility.
No, you have to choose.You can be either a Floating Supervisor or a Category Supervisor. Category Supervisors supervise specificcategories - such as Animal Life, or Anime and Cartoons - while Floating Supervisors do not.If you are a category supervisor, are you limited to helping only in that specific category?Absolutely not. You are welcome to contribute on the site wherever you please.Can you switch if you wish?Yes, certainly. Supervisors can switch between Category and Floating Supervisor if they wish.
Sometimes. If there are already enough supervisors in a given category, you may be able to supervise a sub-category or another category. There are also "floating" supervisors, who are generalists that have basically the same powers as category supervisors, but just help out wherever they're needed.
Sadly, no, you cannot. Another Supervisor might want to supervise that same category, so no 'rain checks' are allowed for categories. However, when you are old enough, you can co-supervise a category with another category supervisor for that same category you wanted to supervise.
You must be at least 15 years of age to become either a floating or a category supervisor.
Yes, once you are a Supervisor, you can request to supervise any category you wish.
If a floating supervisor wishes to become a category supervisor, they can apply in the same way that a non-supervisor would, by sending an email to the appropriate email address.
Yes, Category Supervisors and Floating Supervisors can change their Supervisor status by contacting a Community Assistant.
Well, it is mainly up to you, Don't forget, a Category Supervisor looks after certain categories, whereas a floating Supervisor maintains every category, just 'Floating'. Hence the name. So it depends whether you prefer just one category or not.
Yes, there are. The Floating Supervisor is a Supervisor who might or might not have responsibility for a given Category. A Floating Supervisor 'floats' into any category and can work in any area. Other than that, they have the same "tools" in their kit as a regular Category Supervisor and have similar responsibilies.
Because, being a Supervisor whether it's floating or a category, or a senior Supervisor, it requires a lot of responsibility.
No, you have to be a Category Supervisor in order to become a Senior Supervisor. (See the Related question.)