The selecting committee has a bias against Chinese mathematicians.
There's been 2 cycles where several who were eligible for the FM, have not been chosen.
These are Math breakthrough prize winners like Wei Zhang, Yun, Xu, Qinwen and not to forget Song Sun too.
I suspect if there were several French mathematicians who were in a similar position for at least 2 cycles, one of them would have won definitively.
Do they think they are cheating or copying or something? Lol
The Chinese "Breakthrough Prize Winners" won the more minor New Horizons prize, not the full Breakthrough Prize.