How to create a user input form with WordPress?

I'm completely new to the whole WordPress scene so I kind of don't know the "WordPress way" of doing the desired task:

Create a form where a user would fill in some details (such as name, surname, upload a video or post a youtube iframe link)

Submit it, once it's done - an admin must verify that everything has been filled out correctly and after that the video can be seen on the website.

Should I write a plugin of some sort that would do that or how does it happen?

Thank you.