PCIe lane counts

Hello. Im building a system with a Ryzen 9900X3D CPU and 5080 GPU. I have an Asus Rog Strix X670E-E Gaming WiFi board that i was planning to keep bue i do have another newer board, an Asus Rog X870E-E Gaming WiFi that is for another build but i could use it for this PC if it improves things in...

So I'm just finalizing a build with a 13900KF, MSI Z790-A PRO WIfI , RTX 3090,a pair of DDR5 RAMs, an AIO and a 1200w PSU. I have 2 1TB NVMe + one 512gb M.2 from my previous build and bought another 1TB Gen4 WD SN850x NVMe. So this build is going to have: 1 x Gen4 NVMe 2 x Gen3 Nvme 1 x...