"Muh Soviet in a supermarket" story in 2023? My comment was also about McDonald's in the USSR, so they're feeling super exceptionalist over fast food slop.
Link You can't see this through Hexbear because they were banned for racism, war crime apologism and ableism 
In the unlikely chance this story is true then the reality is that yeah, someone coming from the Eastern bloc might initially be overwhelmed to tears by the illusion of choice provided by western supermarkets. Thats all thats going on though. Just being overwhelmed by the flashiness of it. That doesnt prove its a good thing or that capitalism is better.
We just had this discussion as well with the 'bananas under socialism' discourse.
You get choice because others don't.
Capitalism is wonderful! Look at all these cheap bananas for sale in the temperate zone! It's like magic with absolutely no externalized consequences!
The GDR imported some food items from Vietnam and other fraternity socialist countries. Those items were often not so well stocked in the FRG. You can ask around in urban centers after gentrification today would they rather have bananas only rarely but a flat that is theirs or bananas but no flat?
There was also a ton of propaganda spread to Eastern Bloc countries by the US and its allies, and there were obviously people who believed everything was better in the West. Parenti mentions this in Blackshirts and Reds as one of the biggest problems for AES countries.
It might sober up those weepers to know that of all those varieties of bread, just about all of them have a lot of extra sugar pumped into them for cynical reasons.