We have people literally taking videos inside VT-4s and JL-10 trainers(in flight and showing instrument panel data), so IMO, people telling accounts of engagement doesn't seem that far stretch. Also, war thunder leaks happen and that goes to show how bad OPSEC is even in the "better" militaries.
I don’t know if Uzbekistan and Thailand are good examples here… Then again UK and France do the same when Russians downplay their gear on Warthunder. Even a Chinese tanker got in trouble for this…