It's like a prayer position. Japanese and lots of other people do it and its not about idolatry for them. Unless they do it to an idol. He says don't shake hands, like basically shake your own hand and nod at people. Like for instance yoga is a real religion and the poses are a small part of it, but someone who happens to hold one of the gazillion they made isn't an idolater, it's just a pose. I agree that it can be smart to not shake hands during a global pandemic, what would you prefer people do? I prefer the brisk head-up like "what's up" that like black people do because it's the opposite of bowing but you get the point. I would propose that in his place but would not take the self-hand shakers to beis din for avodah zara poses.
I said what Orientals do is better to replace hand shaking with. The Hindus are not Orientals. "Politically correct" morons think "Asian" is a race but most Hindus are Caucasian. Of course Hindus are Asian just like Jews are because we are all from Asia.
The Hindu thing mentioned is idolatrous. Hinduism is a religion. The article said nothing about Oriental. I brought up Orientals. They are a race, not a religion. You said do the things blacks do. Blacks are also a race. As long as you don't practice black idolatry such as Rastafarianism or traditional African religions, it's okay to imitate their ways of greeting. The same goes with imitating Orientals as long as you don't practice Buddhism or Shintoism (and other Oriental religions).