It is true that his son has been accused of hiring "phantom" employees, but to say it was on Bolsonaro's behalf is pure speculation, in fact there are zero corruption charges against him. I personally find the whole Hunder Biden episode to be a lot more damning than that and I am not ready to say Joe Biden deserves to be held responsible for it.
It is also worth noting there is no "OCCRP" award against Lula, former Brazil's president, who was in fact tried, charged, and imprisioned through a lengthy and fair judicial process - that really makes you question the true motives of this award. Are speculations more important than the due process of the law?
[0] https://veja.abril.com.br/brasil/preso-do-pcc-o-pt-tinha-dia...