Hi,
Yes, the fix is in Jetpack 5.1.5. You may upgrade to the version. Or manually merge the commits to previous version:
r8168: update driver to 8.053.00
r8168: Change file permissions of source files
r8168: Fix -20C 10mbps failure in Mods test
r8168: Disable 10M EEE
You can download kernel source of 5.1.5 by running source_sync.sh. And the commits are in kernel/nvidia