At the end of a sentence, voyez-vous is literary and slightly outdated and so is vois-tu. In France, is is almost never used in “normal” conversations, maybe in a speech or a very formal context but not at all like the English you see.

At the beginning of a sentence (I overlook you that part of your question), voyez-vous and vois-tu are common and, unless followed by a comma, mean “do you see/know”, not “you see/know”

At the end of a sentence, the casual tu vois is extremely common in spoken French, can be used with someone you are familiar with, and appears in situation where you would have said “you see or you know” in English. If talking to someone you do not use tu with, that would be vous voyez.

Yes you do use “voyez-vous” or “vois-tu” at the end of a sentence. But from experience, I would tend to use it at the beginning of the sentence. Like “voyez-vous ce que je veux dire?” or “vois-tu ce que je veux dire?” And you are correct when you say that it means “you know” or “you see”.

In English, I often say “do you see what I mean?” or “do you know what I mean?”. This would be the perfect use for “vois-tu” or “voyez-vous” if you are speaking to more than one person.

You can use it to be sure your interlocutor understand what you mean.
It is also sometimes employed to verify that he’s still listening you.

This expression is commonly placed at the end of the sentence.