My own fonts in the themeplate

your customer would like to use two special fonts on the website. I have tried using an external plugin to load them and I have succeeded. But when I want to set up styles for the whole site in the panel, those fonts are not available .. Is there a way I can get them into the template. either through ftp or another way.

I have also discovered that if I change google fonts in wp-bakery then it does not respond.

Any idea what we can do about it?