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@Fred123

To save you actually bothering to do some research

I suspect standing in front of the fridge, how often one opens the fridge, which often relates to how many are in the home at the time matters. Then the grey matter rattled.

Fridge with NO designated meat compartment - is this a trend?

I wouldn’t panic too much about that, I calculated some years ago that the loss of a cabinet’s worth, say 250 litres, of cold air from a fridge means you have to cool that volume of air down again, but it is only about the same as cooling 60ml of water from room to fridge temperature. The contents have a much greater heat capacity than air, so reading the fridge, even for a couple of minutes, is unlikely to have any significant effect on the temperature of most of the contents. Placing a room…

I’m with @gordon on the basic science. The density of air is 1.225kg/m3 at STP. The heat capacity of air is also approx 1/4 that of water.

Experimentation might resolve the effect more clearly. It’s important to consider most of the time at the fridge is adding or removing contents. A suspicion is it is what we put in and take out, being high thermal mass relative to air has the greatest effect.