Agree with both of these statements. I would go on to add that Frankfurt was terrible pre-Covid. Completely lacking in infrastructure, things like elevators and gates so that you can deplane right at the terminal instead of at the far end of the longest airplane parking lot you’ve ever seen.
If you can’t deplane at the gate, then you are carrying your carry-on luggage down narrow stairs. After the bus transported us to the terminal, I couldn’t even find an elevator and I had to carry my luggage up (what seemed like) two flights of stairs.