How about non-online stores? In the US many major chain stores have their own brands. For example in grocery stores Safeway has their Signature Select brand, an

How about non-online stores? In the US many major chain stores have their own brands. For example in grocery stores Safeway has their Signature Select brand, and Walmart has Great Value. In electronics Best Buy has Insignia, and Walmart has Onn. Do major EU retailers do the same?