Typically if you rent an apartment in Europe it comes unfurnished.
Meaning you have to supply your own fridge, stove/oven etc. in addition to furniture.
The apartment is essentially a shell
I’ve watched a few of their shows. It’s amazing how many naive people with money go in to some of those places.
Some of them have nice places - but I see a lot of two-burner stoves or just a microwave. And a fridge about 1/4 or 1/5 the size of American fridges.