Looks like I’ve been caught ‘leg before’ here (cricket speak for anyone else reading).
My full post is here, 2 years ago:
TP-Link fiber optic conversion questions?
I’m not sure what I meant by ‘as much fiber cable as possible’ at the time.
And today I probably wouldn’t recommend (in general) to others such a short RJ45 ethernet cable. I’ve since learnt from experts that very very short ethernet cables (under ~1m) can sometimes have performance issues… but my full post above did mention my particular 6-inch cable was tested and certified by Blue Jeans Cable. I don’t use that 6-incher anymore though - different system layout, needed longer cables in new layout.