Be careful with these older boards. Some might be PCIe 3.0 making your GPU and NVMe dog slow.
https://www.techpowerup.com/review/nvidia-geforce-rtx-5060-t...
I'll let others judge for themselves, personally I'd be tempted to get an x16 GPU since the 5800X3D is actually very near top of the line and the GPU should match the CPU imho but in general even the worst case of x8 GPU on a PCIE 3.0 motherboard doesn't seem to be the end of the world
But seriously, claiming "dog slow" is certainly an overstatement. You lose some of the top performance, not below - and it's still ~4/16GB/s
https://www.reddit.com/r/buildapc/comments/ilz8v6/which_am4_...
Chipset PCIe Version Supported
X570 PCIe 4.0 (both GPU/NVMe)
B550 PCIe 4.0 (GPU/NVMe; other lanes are PCIe 3.0)
A520 PCIe 3.0
X470 PCIe 3.0
B450 PCIe 3.0
X370 PCIe 3.0
B350 PCIe 3.0
A320 PCIe 3.0https://en.wikipedia.org/wiki/PCI_Express
AMD didn't even support PCIe 4.0 until 2019 with Zen 2, Intel in 2020 with tiger lake.