FYI, RTL8157 support is now merged into the mainline r8152 driver: https://git.kernel.org/pub/scm/linu...c?id=fd3c7d080df53136c7e7e37f753fb7bd4640ca42
It will be in Kernel 7.1.
I am eagerly awaiting kernel 7.1 for Proxmox. Is it also fully stable for the RTL8157?