For those whom observe dietary laws most strictly, does preparing a Seder plate cause any problems?

Hi everyone, I'm a trainee Religious Education teacher in the UK and currently teaching a Judaism module. Just want to find out more about the Seder plate as I'm teaching a lesson on it this Friday.

My question(s) are really more for Orthodox Jews:

So I understand that a Seder plate contains both a lamb bone and an egg on it.

For those who prepare meat and dairy in separate kitchen areas, how does this logistically work?

And do you actually eat/chew/gnaw at the lamb bone? If not for those who require a wait time before switching consumption between meat and dairy, what do you do?