I know how you feel about the 5G network, the conspiracy theories and continues spamming through all those years, in everyones mind it instantly has as reaction the bs.

However, here is the insight, you don't go to all the trouble just for to have people or machines in various places to check the so called "MARK", or "chip" or "tag".
You implement the satellite coverage of 5G and after or in sync you implement also the tagging, that way you can track anyone, anywhere directly, you instantly know who is alive or dead or had the vaccine or not or is immune because of antibodies, you also know lots of other stuff not related with the current situation.
The vaccine can be real, and not the actual threat, the tag though is the threat, find how it works and what it can do, it is very simple actually. They are one step ahead of you all the time and this is why they can pull it off so easy, because of how easily the human mind can be controlled.