Braided Solo Loop size

Yes, exactly the same fit. The watch cases are near enough the same overall dimensions, it's the screen diagonal which is different and gives the nominal watch size, because they made the bezel thinner in Apple Watch Series 7 and even then it's only 1mm difference in measurement.

all bands work for 38m and 40m, 41m watches

all bands work for 42m and 44m, 45m watches

across all models and all generations

See

compatibility details

if this is anything to go by

Loop bands on AW7 - Apple Community