Trying to understand some things about private ipfs

I hope someone will answer
I want to understand several things

First, when I create a private ipfs network, does it have a web UI of its own, or is this something that I have to install, and how are there instructions or steps?

Secondly, how can I use the remote pinning service to control the data inside the private ipfs network from a device outside the network, are there services that allow this,
How do I make it easier for myself?

Sorry for the long post,
my last question

Can gateway be used to access content on private ipfs
How can I link gateway.noFetch
With the ipfs private network, do you only allow access to and reading of content (read only)

I really hope someone can answer me
I am trying to study and understand some things