Maybe you are looking for a changeover switch / [Wechselschalter]. It looks externally like a single pole switch, there you have two independent switches in one box. So you save one space.
I have 3 lights and 3 places where I can each switch all 3 lamps.
So the three lamps should be able to be switched independently from all three locations?
The main point was that one of the two-way switches is simply a double rocker series switch.
But then you have to assign a different lamp to the single intermediate switch at each switching point. I wonder how long it will take before the residents remember which lamp is switched from which place with which switch?
Maybe you are looking for a changeover switch / two-way switch.
It looks like a single-pole switch on the outside, you have two independent switches in one box. So you save one space.
It is called a double two-way switch or simply a series two-way switch.