How is data preloaded into the database in symfony?

Question

symfony

Often, for the application to work, you need to have preloaded data in the database In laravel
there is a seed for these purposes, and I met it in other frameworks
In symfony, as I understand it, there is no such thing
I decided to use fixtures, but what, it’s very convenient, I can say ideally
, when I tried to execute doctrine:fixtures:load on the production server and I was rejected, spitting out that this command is not available in the prod environment ... I had to temporarily change the environment ...
So, how do you load predefined data?
Really in migration manually to register INSERT INTO????