From the those I know who have left in the last year or two to peruse a FW Career ( those being Mil RW) all have landed jobs across the board with different Airlines ; including BA, but that one was 2 years ago when they hoovered up a lot of pilots. EasyJet did have a weighting system where they count RW hours at a reduced level- not sure if they still do this. Jet 2 seem pro military, Norwegian have taken a couple without the 500 HRs as well. Bottom line from what I’ve seen, get the licenses and cast the net wide-you’ll land a Job. The 500 HRs is about airmanship/captaincy and time in the air rather than the FW specific manual handling skills.