So that’s what was causing all these weird network issues all of a sudden here. Looks like 6.8.0-101-generic is likewise affected.

Sending wake-on-LAN packets also broke for me coincidentally with this. That is, my NAS (now also running 6.8.0-101) could still receive WOL packets sent from a server running 6.8.0-79, but none sent from my desktop (running 6.8.0-101). After downgrading the desktop back to 6.8.0-94, WOL packets sent from it were again immediately picked up by the NAS.