The “Concert” remark referred to a sprawling relaunch of a controversial Israeli government program initially known as Kela Shlomo, designed to carry out what Israel called “mass consciousness activities” targeted largely at the US and Europe. Concert, now known as Voices of Israel, previously worked with groups spearheading a campaign to pass so-called “anti-BDS” state laws that penalize Americans for engaging in boycotts or other non-violent protests of Israel.
Its latest incarnation is part of a hardline and sometimes covert operation by the Israeli government to strike back at student protests, human rights organizations and other voices of dissent."
To me, the article is littered with detailed concrete examples of how Israel has sought to suppress and manipulate US public opinion and prevent or dampen normal democratic discussion, protest and actions. The above quote is in the opening few paragraphs.
What kind of groups did they work with? What kind of work did they do with them? For all I know they're funneling money to non-profits owned by family members of government officials.
There is nothing concrete here.
There are several examples in the article that answer your earlier questions.
All foreign powers will try to do the same thing, through the legal channels, and the not so legal channels. The current order enforced on the back of the US dollar is simply too powerful to not do that. Americans are broadly naive about this, so it's relatively easy to "shock" them into caring about it.