Personally I wouldn't ask FC details of his routine at this stage, there's plenty tine to ask after matching . The meeting with FC is probably the most informative you will have -don't waste it.
I'd focus on collecting information that you need to decide if this is the right child for you.
Later on you can ask for information that will allow you to transition him as easily as possible. So don't muddy the water with details of what breakfast cereal he likes.
Of course, if you find out that he only eats one or two foods at all, you might conclude that he has food or sensory or control issues that you will need to deal with.
So I would ask much broader questions like
what kind of child he is to live with,
who he relates to best in their family
how he plays with other kids
how do they discipline him ( you want to know thi because of how he reacts to it )
How is he with animals and babies ( even if you don't have any, you need to know if he's a risk to them )
How is he on holiday ( how does he cope with change )
How is he at school , does he have freinds
What's his relationship like with members of his birth family and what are they like with him ( I'm assuming he's had contact until recently )
How does he act when he's distressed
In general , try to be as politely curious as possible. Ask open ended questions. Avoid sounding like you are judgeing them or checking that they are following SS procedures.
Most FC will open up if asked in a way which indicates respect for their knowledge and experience.