In Poland almost everything is 1/3 of the price compared to the rest of the EU for the same "stuff", arguably most have Polish branding but there are common products(Nestle, Coca Cola, etc) that are significantly cheaper.
Disclaim: I'm American and I'm mostly guessing here,
I know that sometimes companies create multiple SKUs of products to get around certain restrictions. For example, if the Coca-Cola in Poland is only sold in Poland, and is different from what's sold in France (let's pretend your flag is on the can) - then they're technically "different products" and don't have to follow the same regulations.
I know the WD easy stores sold at best buy are best buy specific so that they don't have to price match them with competitors, even though what the competitors sell have identical internals.
Oh yes,the famous brand products with less good stuff in them. Essentially,there are 3 unofficial markets in Europe: local market, western countries and the rest... Obviously the rest get it worse. European commission were investigating this couple of years ago,not sure where they are with it now.
http://www.europarl.europa.eu/RegData/etudes/STUD/2018/60884...
That's just different shops having different prices. The price discrimination that is banned would be like a shop near a border charging different prices to locals and border shoppers.
Europe is truly unique in this regard. For instance, my father in law bought a Lithuanian made furnice from a retailer in Latvia because it was cheaper than if he would have bought in Lithuania. Car reimport exist as well,where a German would buy a car made in Germany from a Lithuanian dealer and transport it back to Germany,because it's cheaper. There are some companies that import medication, repackage and sell abroad in markets where the same medication costs more( this one is an old one,not sure if it's still the case)
I know that sometimes companies create multiple SKUs of products to get around certain restrictions. For example, if the Coca-Cola in Poland is only sold in Poland, and is different from what's sold in France (let's pretend your flag is on the can) - then they're technically "different products" and don't have to follow the same regulations.
I know the WD easy stores sold at best buy are best buy specific so that they don't have to price match them with competitors, even though what the competitors sell have identical internals.