There is a lot which can be deduced and pieced together from the past decade or so of J-20 family specific rumours as well as tracking the trend of other PRC projects, as well as application of common sense.
For example, would it be considered info for us to say that J-20 as a family (20, 20A, 20S) have AESA radars? Or that the vanilla J-20 had different, improved AESA models over its production batches? Or that between the last vanilla J-20 batch and J-20A/S that there likely were significant improvements in AESA capability (and the rest of its avionics suite) and that by now they are likely at GaN for their substrates by now, if not even earlier?
Etc etc.