How to differentiate rights by roles in Symfony?

Question

symfony

Hello! I have no experience with symphony, only with laravel. Therefore, the question of the differentiation of rights arose.
The best way to do this is:
Let's say there are 2 user roles. Each has its own view
views/
base.html
u1-ext_base.html u2
-ext_base.html
There is a url, say "/user"
And a controller, for example "UserController"
, with your data. At what level is this being done?
And how best to organize views, actions, etc.
Thanks for the help