So outside the UK, what would a controller say if he had you identified on the radar but was unable to provide a radar service due to workload?
This is indeed a tricky situation. Again, in class G you do your own separation but most ATCOs I know (when providing FIS) will give you traffic info when you get too close to each other, without you asking for it. But there is always the possibility of frequency overload or simply ACFT escaping our gaze...