I haven't looked at them. I tend to focus more on production anomalies for in service equipment. AFAIK FGFA is pre proof of concept. My personal take on it is that 5-gen will be the last front line manned fighters that modern states develop and the performance specs for front line UCAV will blow them out of the water (or the air as it were). Russia can dump tons of cash to play catch up to the F-22 but since the F-22 is already curtailed I can promise you that fully autonomous UCAV with air superiority flight performance is not that far away.