Sort of. On one side, they already benefit when the system is more fair, while the other side does everything in their power to rig the system in their favor, trying to lock their opponents out of ever having a chance.
Look at what Texas is trying to do. They're trying to lock statewide office behind the barrier of number of counties voting for them instead of population. That way Democrats will never again have a statewide office as all the tiny counties with almost no population are Republican-leaning.
So while one side is happy with the status quo, the other side is fighting tooth and nail to make the rules less fair.