MadeinYorkshire You use well-known conspiracy theorists as your sources and then, like all good conspiracy theorists, tell people "to do their research", which is a well-known ploy (well-used by flat earthers). In September 2023, Aseem Malhotra received the Rusty Razor Award, a prize given to "the year's worst promoters of pseudoscience".
The way social media's algorithm's are manipulated, Google will produce the pseudo-claims by the people you mention at the the top of the search list. People read the stuff and most never go any further to read the genuine research.
The sources you quote aren't in the slightest bit credible.
I expect most people know somebody "who died suddenly from a heart attack or similar or have suddenly been diagnosed with cancer that kills them over a short time". People have been dying suddenly and unexpectedly since the beginning of time - nothing at all to do with any vaccines. There have been a miniscule number of cases where the Covid vaccines have been linked with death. Those cases are themselves a tiny number in the ratio of deaths by vaccine:deaths from Covid infection.