There are several Polish dishes that boil down to throwing whatever is edible into a single pot and boiling for hours. Bigos is mostly cabbage, gulasz is like very thin gravy, leczo has lots of red pepper and zucchini, jarzynowa (literally "vegetable soup") has no set ingredients at all.
Only bigos and jerzynowa are Polish. The rest of dishes you mentioned are Hungarian. They're quite popular in Poland though
> “Ever eaten scubbo? No? Nothing like a bowl of scubbo when you’re hungry. You can put anything in scubbo. Pork, beef, mutton, rabbit, chicken, duck… anything. Even rats, if you’ve got ’em. It’s food for the marching man, scubbo. Got some on the boil out there right now. You can have some of that, if you like.”
> The squad brightened up.
> Thoundth good,” said Igor. “What’th in it?”
> “Boiling water,” said the corporal. “It’s what we call ‘blind scubbo’"
Monstrous Regiment, Terry Pratchett (GNU)