Coins are still standard in Germany so! It is extremely rare to have a broken one around where I live.
And I frequently do because I HATE german supermarkets anyway!
The only thing that pisses me off is that Lidl and Aldi don't have baskets. In fact my local Lidl had an absurd short-lived policy that you aren't allowed in the shop unless you get a shopping cart! Thankfully they came to their senses. I just use my shopping bag as a basket.
Just in general not a fan of german food products.