It really depends. One specific shop near my home has good quality frozen meat pancakes and dumplings. Yeah I have made dumplings by hand some 20 years ago, but those frozen ones are simply better. Maybe I can do some exotic dumplings with a buckwheat flour and a lot of eggs, but that would not necessarily be better, just different.
On the other hand, pasta sauce prepared from scratch will always taste better than store-bought one, mainly because the stores here only sell ketchup and mayo, and pretty much all pasta sauce here is some variety of tomato concentrate with a bit of carrots.
Someone wants to raise their Hirsch index, is all.