I have a bathroom extractor fan to replace. It is the type that has the light in the middle of it as in the picture below..

They all seem to be in-line as in this link Manrose In-Line LED Shower Light Fan Kit Bright Chrome 100mm - https://www.screwfix.com/p/manrose-in-line-led-shower-light-fan-kit-bright-chrome-100mm/45818?_requestid=300335
Above the bathroom is another room so the ducting must be going under the floorboards, I only have access from underneath from the 100mm hole, so I cant fit an in-line fan. If the existing fan is in-line then I guess it's either been fitted when the floorboards were up or else it just been chucked up there.
Can you get these type of fan lights with the fan in the actually light part rather than a separate in-line fan?

They all seem to be in-line as in this link Manrose In-Line LED Shower Light Fan Kit Bright Chrome 100mm - https://www.screwfix.com/p/manrose-in-line-led-shower-light-fan-kit-bright-chrome-100mm/45818?_requestid=300335
Above the bathroom is another room so the ducting must be going under the floorboards, I only have access from underneath from the 100mm hole, so I cant fit an in-line fan. If the existing fan is in-line then I guess it's either been fitted when the floorboards were up or else it just been chucked up there.
Can you get these type of fan lights with the fan in the actually light part rather than a separate in-line fan?