first, paper ballot suffer the exact same problem..

In fact i strongly believe that Bolsonaro would do the same thing regardless of the system, if we had paper ballots he would complain it is not electronic.

The same trust attack you can do on electronic system you can do on analogical systems. Anything you do will be subject to this problem

second, the truth is that electoral system does not care if people trust in it or not. Even with Bolsonaro attacks and a massive distrust by the right wing on the system it was still used and the results accepted.

The only thing that matter is whatever you can prof in the electoral court if there was fraud and no one was able to do it, not even bolsonaro.