Hello,
If you want to apply the theme styles, you need to set the navigation font settings in the Theme Settings > Typography, you will need to scroll to the bottom of the setting page.
In addition, you can change the font by means of the Advanced typography option, which allows you to choose the item from a drop-down or insert your custom CSS class. Please navigate to the Theme Settings > Typography > Advanced Typography.
Here is the documentation providing more detailed instructions: https://xtemos.com/docs/woodmart/advanced-typography-settings/
If you want to apply Elementor styles, you need to disable theme styles in Dashboard > Elemnertor > Settings.
In addition, you may need to enable styles and scripts of the Elementor styles in the Theme Settings > Performance > Plugins > scroll to Elementor settings.
Best Regards