Plugin Language

My website is a Japanese website. For SEO reasons I have WordPress in Japanese but in my functions.php I force my backend to English so everyone can work in the wp-admin interface.

function wp_noshor_redefine_locale($locale) {
if( is_admin() ):
switch_to_locale('en_US');
endif;
}
add_filter('init','wp_noshor_redefine_locale');

This works great for all plugins I have except for Matomo (https://d.pr/i/FNU8Mm). This one remains in Japanese and because of that we cannot use it. Is there a way to force it to display English?