How to disable the fonts used in the theme?

Hello.
How to disable the fonts used in the theme (Lato, Poppins) ? And use the standard either to connect?
PS: if in the title there are Russian and English letters - looks TERRIBLE! :frowning:

Hello there,

I hope you are doing well today.

You can use the following CSS code to change the fonts by going to Appearance > Customize > Additional CSS and pasting it there.

/*Change all fonts*/
h1, h2, h3, h4, h5, h6, span, p {
    font-family: sans-serif;
}

Best Regards,
Support

thank