laravel retrieve all users where value match pivot table

So im trying to make relationship between user roles and profiles everything works connected on creation but i don't know how to filter out when i want to list users by specific role or profile.

Here is a table structure that i have now. Each table corresponds to it's model, so table users have model User table roles have model Role and there is a pivot table role_user that connects users with roles.

This would be role table

+----+----------+---------------+
| id |   name   |  Description  |
+----+----------+---------------+
|  1 | admin    | Administrator |
|  2 | client   | Client        |
|  3 | operator | Operator      |
+----+----------+---------------+

This would be pivot table for user role

+----+---------+---------+
| id | user_id | role_id |
+----+---------+---------+
|  1 |       1 |       3 |
|  2 |       2 |       1 |
+----+---------+---------+

And this would be user table normally

+----+--------+-----------------+
| id |  name  |      Email      |
+----+--------+-----------------+
|  1 | Mario  | [email protected] |
|  2 | Luighi | [email protected]   |
+----+--------+-----------------+

So if i would list all account that is very simple, as i would just use

public function index(Request $request)
{

  $users = User::get();

  return view('users/index', compact('users'));
}

If i want to filter users by specific name or email i would just filter

$users = User::where('name', 'Mario')->get();

That would retrieve all users where matching name is mario.

Now something more complex is where i stumbled upon and i couldn't quite find answers on internet.

I want to retrieve all users where user role from pivot table matches role from role table.

Example would be

Retrieve All Users WHERE (pivot table) role_user EQUALS name OPERATOR from role table

That would return user Mario, as his user id is 1 and in pivot table that user_id matches role_id 3 which in roles table is role named OPERATOR.