Otw but after replacing the flat Ethernet cable (no change), and while waiting for the vero I switched to connecting to jellyfin / jellycon via its local address instead of its external one (🤦♂️) and zero buffering silky smooth everything. I don’t understand why but holding my breath for now while I wait for the vero when I can retire this unit at least to the office tv where it doesn’t have the responsibility of always performing for the family.
Using the local address for the jellyfin instance solved things. I have no idea why whatever jellyfin is doing via jellycon is somehow more performant than just streaming via smb or nfs in vanilla kodi but 🤷♂️. Good pull.