Custom plugin products in the frontend - despair

Good evening guys,

Does anyone know how I get the selected products from a Custon product plugin into the frontend?

I’ve done all the DataResolver and Struct things - I just don’t get any output in the frontend (only under Config Product Value - which doesn’t help me) …

Surely one of you has already written a plugin that displays products in the frontend? - Can someone help me?

Would be super nice if there was an explanation for „stupid“: D
I’ve been sitting there for a week …

Thank you!

Edit: The standard product box does not help - the product with all information is loaded directly below. Not at all with me …

left =Dump from my plugin frontend
right = Dump in block.slots.elements