Are you using the default resolution or more space?

As we all know, iMac has a scaled resolution by default, so the content that can be accommodated on the screen will be much less. However, changing to more space will theoretically increase resource consumption and affect performance. I want to know which performance piece is affected by this piece? CPU? GPU? Or memory? In addition to the smaller UI, I think it's quite good to have more space, making effective use of screen area and resolution. So I want to ask everyone what their usage habits are?