Localized floor switches with SFP are actually quite common in commercial installs. At home it's possible to have one basement rack and connect all the wall jacks to it, but those runs are too long and clumsy in a large office building.
I do the same thing at home actually, I just put the floor switches in closets/etc. so the fan noise isn't audible in the living areas. The rack and core switch sits in the basement. However I just run copper instead of fiber as I can't justify the expense and 10G lines should be future proof for a while.
You can also have your modem or ONT connected to any of your floor switches routed to a seperate VLAN and keep your router in the rack. This avoids you having to run another line for the WAN side.
You can also have your modem or ONT connected to any of your floor switches routed to a seperate VLAN and keep your router in the rack. This avoids you having to run another line for the WAN side.