When I go on FT8, I usually check PSKreporter maps to see if anyone has received me. Some people report spotting, but these sometimes do not appear on PSKreporter. There can be a number of reasons.
PSKreporter might be down, the internet link from the reporter to PSKreporter may be down, PSKreporter may have a delay. There may be other reasons too.
All I am saying is PSKreporter is not infallible. Just because you are not reported does not mean you are not being received far away.