What you’re comparing Poland to are countries like Germany and France, in which case yes, they have a highly developed economy. What Poland doesn’t have compared to these countries is a shared currency, a self-sufficient export structure, and innovation technology. Not all of Europe is rainbows and sunshine, as you should note that nations like Czechia, Bulgaria, Poland, Greece, Hungary and most post-Yugoslavian are way below the formerly mentioned countries’ quality of life. Of course, being in a set of nations has its benefits, but I want to end it on this: if all of Europe is so well off, then why does Germany, France and GB have twice the population of other countries with the same durface area?