So chances are making sure the board has PCIE4 isnt of much use because chances are you arent going to buy a rocket lake cpu because there is no reason to take advantage of PCIE4. In a few years well have PCIE5 anyway.I apologize for the late response. I suppose just future proofing. That if it's at the cost of insane voltage settings by default, stuff I am not comfortable messing with, then I can't justify one over the other.
So i wouldnt even worry about PCIE4 support/futureproofing especially since gigabyte is the only one doing it. And with their already terrible bios and flat out unwillingness to fix issues and bugs in their bioses that have been reported to them by enthusiasts and big name people i really would shy away from them. They have PCIE4 stuff on the board but because of that and they have ZERO chips to test it with who knows how bad this future proofing measure will work for them.
I agree with Furious_Styles. It doesnt seem like you are doing hardcore overclocking so no need for the high end boards. This is why i said MSI Z490 Meg Ace. Its a great all around board.