At face value, the build you've listed on PCPartPicker is good, though if you intend to upgrade the RTX2060 KO to an RTX3060, you will have to up the PSU to something higher in wattage. If you didn't purchase the PSU yet, you should up the wattage. Where are you located? What sort of tasks are you going to tax the system with? I said face value since you could extract a little more performance from the build if you went with a dual channel DDR4-3600MHZ CL16 ram kit.
I'd also get a smaller SSD for the OS/app's, have the larger SSD as the game library if the build is for gaming. Speaking of gaming, what titles do you intend to tax the system with? If it's not gaming and for purely productivity, then the build needs some refinement, storage wise.