Originally Posted by vivere

For F they use PS at LAX and private terminal in TPE. Both with chaffeur service to and from the airport.

Also, it’s completely clear why JX have gone for F seats placed into same cabin as J. If F is not selling, they will get rid of it and sell the seats as J Plus, as many do with bulkhead seats row. Actually pretty smart, I would say it is risky to install a completely separate cabin with F as a new startup like JX.
Also, the extensive use of third parties for lounges indicates they don’t want their own F lounge.

Apparently the F seats is the same as J, (Collins Aerospace Elements) but with some more pitch and a bigger TV.

I frequently check seats at EF and I rarely see any booked in the cabin. If they don’t upgrade pax at the airport, I don’t see their F class remain more then 1 year before it’s converted to Biz Plus.