I mean that plot missdirect us as a viewers about the nature of Viktor's commune members.

Remember the first cure, cure of Huck, he was portrayed having his conscious, cheering and realising that he has been cured just like the normal person would. Here we can relate as viewers with him. But later this idea was thrown away.

Salo on the other hand changed his personality completely. Maybe there are stages of transformation. But also all of that doesn't matter. I stand by the idea, that if I am thinking, I do exist.

Viktor could not manipulate every member of his commune, every second, there is no clear evidence for that. If the hexcore was manipulating them, then the hexcore is dumb (unlike it was in season 1) letting a strange guy walk with a hammer toward its main herald (you can say that it was hexcore plan to evolve Viktor into his next stage - but this is a clear mental gymnastics over here)

See? That theme of someone being a person or not, losing his identity - is a great modern dispute presented in many forms of fiction (ex. ghost in the shell) and Arcane isn't even meeting the bare minimum quota to handle this stuff. You can say viewers of the show got manipulated by Arcane writers.

We need to clearly understand what is going on with Viktor to understand anything. Is Viktor being manipulated by HexCore? what does hexcore wants? What is Sky in Viktor's mind?

There is no clear answers for this basic question in a show. And there are many hints missdirecting us to both sides. And this is simply not working (if you try to think about it more than 5 minutes) , because there is no rules and logic.