Updated to 22.7.3_2 this morning and the system came backup with my primary LAN showing 90%+ packet loss. At first I thought it was just a GUI glitch, but it ended up being real.
Checked relevant logfiles that I could think of and didn't see anything alarming.
Decided to just reboot the system again and it came up perfectly, no more packet loss.
Posting to see if others have seen behavior or have ideas on what/where to look in the logfiles for anything meaningful to share.