Questions about Emsa President 2.0l

I bought a 3 litre Kane and thought it was completely leak-proof, even if I turned it upside down. This is not the case, is the canister defective or did I have the wrong expectation? Only keeps warm for approx. 6 hours with a filling quantity of approx. 2.5 litres

Is this thing dishwasher-safe?

Hello, how big is the stainless steel opening at the top when you remove the black head completely? Is the double wall insulation narrowed at the top? For a hobby project, I only need the stainless steel container with its good insulation and without the weakened head. But the opening should be as large as possible and without constriction. Many thanks

Does the jug leak in case of vibrations? E.g. in the car or on the bicycle trailer...

Is the jug leak-proof when you carry it in a backpack, for example?

Can I buy the lid separately

Can thin soups also be poured into the pot? Or is there something to consider?

Is the jug unbreakable in case it falls down?