On another board a poster measured his Samsung RF 197 power with a Kill A Watt and found that it uses 1820 watts daily. That translates to about 150AH from the battery which can be significant for dry camping and is a huge drain on the common 4x GC 460AH battery bank. For dry camping, recharging via alternator, gen or solar has to be considered. And the battery bank capacity is a factor.
Many campers are satisfied with the refer conversion and don’t make any additional equipment changes and rely on utility power, gen or driving/alternator.