How to work with GitFlow Addin in Visual Studio?

Question

Bitbucket

There is a project in it 2 branches:
dev and master
dev - we use
master for development - automatically gets into production.
What GitFlow Addin allows us to do:
1.Start Feature - as I understand it, here we create new features and can switch between them during development. Changes at the end (Finish Feature) will go to the dev branch .
2.Start HotFix - everything seems to be the same and also fall into the dev branch , but why? shouldn't HotFix go directly to master ?
3. Start Release - it is not clear what needs to be done at this stage, but in the end, when completed, it will be merged to dev. Although, in my understanding, a branch with the release version should be created.
Maybe I'm doing something in the wrong order?
Start Release -> Add Feuture -> Finish Feuture -> Finish Release.
But how then to apply hotfixes to previous versions?
Already a mess in my head, but how should it be right? Can someone explain how to work in a team with GitFlow on the fingers.