In 2025, can you max out a 10 Gbps Link on the local Network? What do you need?
-> fast PCIe Ports with >= x4 Lanes.
I set out to test this.
TL;DR: the 1000Base-T is astonishingly very well optimized, has very small latency, 10G is not going to change much.
The 100M and 1G Tests were performed on the same machine, via loopback cable/fiber and all tests without a router.
It is not so common to be able to assign the same IP Subnet to different Interfaces on the same machine, but go see this excellent guide.