I sort out colours (white, dark, light and red), but don’t mind what it is and usually all are full loads. Everything that fits through the door goes in the machine incl trainers, lunch boxes all muddy mtb kit (start with a cold rinse and then wash, gets lovely and clean).
I only wash whites on 60, everything else on 40.
I did used to wash the kids nappies in a separate wash, but same machine. Same one as we are using still now….
People actually still boil wash stuff? How high is your electricity bill!