Variable clocks and load balancing seem more like methods of keeping the cooling needs low. Since computing power isn't always running at max, being able to adjust the clock, and shift around the workload is a great option for laptops, as you can ensure that the cooling required is always exactly what is needed, and thus your power consumption should also be right in the sweet spot as well. I assume this is related to the loud fans on the PS4, which was a thing for me. It shouldn't matter to the user, as the system will be tested at high ambient temps to ensure that the cooling system works. Unless your room is a 40C oven (in which case you're better off buying an aircon instead of a console), then the only difference from person to person is how hard the fan will end up working for any particular game.
It's not like my laptop where I regularly run games at high settings, which are made for beefier desktops. Depending on what surface I have the laptop on, I might actually make it overheat and crash Windows. That won't be a problem with the PS5, as the games will be coded for that hardware, and the cooling system will have a tolerance that allows for even warm apartments in tropical regions.