Maybe there is no need to complicate things by thinking about nano tech and advanced technology in the jabs. Maybe this one is just to give as many people cancer as possible because that is a type of death which they can easily deny. Steadily increasing rates of cancer, "could be anything" they'll say.
Moreover, with Earth's weakening magnetic field during the Pole shift, that will theoretically bombard Earth with far more space radiation than people are used to. It could be a one two punch, weakening people's immune systems and then kill them off with cancer. Not everyone of course, but who knows, perhaps hundreds of millions or more.
Maybe the full roll out of the more advanced tech comes in response to this first wave of death. Who knows and hard to say, but just thought I'd speculate here.
A concerted effort to usher in WHO/UN, global centrality. Bankers love Global anything. The pattern of advancing the takeover is always: First a crisis is born, real or manufactured, then a massive central government bill as an expansion, then a war. Same pattern as before WWII, World Trade Center, on and on. It's goal is the legislation they get passed as a result of their beloved crisis. Then we live with the expanded regime forever. COVID is the same song different verse-bigger government.