In the same way as luckman212 I'm using the RTL8157-based 5G NIC which uses r8152 driver that must be used with DKMS or surrender to cdc_ncm.
Good news:
I tried this beta 7.1 kernel and was able to get the NIC working with in-tree r8152 module. Link is stable, low-latency, and works with jumbo...