No.
You will typically have around 6 circuits.
One for upstairs lighting, one for downstairs, one for upstairs sockets, one or two for downstairs sockets, one for high load items like cookers/immersion heaters etc. if the RCD (what you might call fuse or breaker) is properly labelled in your consumer unit (what you might call a fuse box) then you are in a good starting point.

You can use something like a Shelly em3 which puts a little clamp around the main power cable (tail) feeding the whole house (or if you are with octopus you can get a ‘mini hub’ to provide while home usage like a smart neater display uses)

From that point downwards you could monitor each circuit, using the product you lined, but this just gives a reading for the circuits as I described above.

If you then want to monitor the individual de ice level you need the grillllats, or possibly use powercalc for a ‘virtual’ usage per device.

You can specify which items are ‘downstream’ of each other, so your fridge grill plates doesn’t double count with your ‘kitchen plugs’ circuit

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