Is there a simple example breadcrumbs dynamic routing demonstration?

[aboutjquery]

Using app route, i18n route, createLocalizedPathnamesNavigation

There are following routes

/en
/de
 /about
 /products/
 /products/[slug]

I've been searching online for a long time but couldn't find a simple example,
And how to not display breadcrumbs when /en /de appears? I once saw a example before, but I can’t find the code now. It will display something like home / en / products / product-name. The /en in it is a bit strange.
thank you