I've been in a few games adjacent to these people without issue and see this powergaming accusation a lot and I take it with a grain of salt because some people say powergaming but what they really mean is "I don't like it that this person affected the entire game and now I have to think about it" as if everyone isn't playing in a shared setting.

I assume these are the same people who got upset whenever anyone would do anything at all that might affect their slice of life rp including killing the sandbox because they wanted a completely static setting and didn't want anyone to ever change anything about it.