Some show I never heard of

Obscure!

I might specialize in foreign cartoons and by the way Have you ever heard of Papyrus The animated series (no not the skeleton, the Egyptian cartoon) and Les Fils De Roma or The Sons Of Rome or Yakari the Sioux Indian boy
All of these mentioned are created by Mediatoon distributors the studio is located in France, and what you seem to mention are obscure foreign cartoons created by these tiny studios
I hope you find what you are looking for
Here is the link to the website

mediatoon-distribution.com/en/programme/roma/

I might add more if I could best help you and if there is more I might add links so you could go and check them out.

There’s also MondoTv from Italy (also known for North Korean propaganda) and Soymultzfilm from early soviet Russia and both have YouTube channels 

I think you just a collection of memories of these types of foreign cartoons and it probably isn’t something really specific