This is as fringe as the EU vigelence database where at least academics can have access. May be its also incompetence in anonymization of data... Usually it is big
No I have watched this process in a project I was involved with and I know for a fact that the process I described is how you access research data from medical records and the death database here and I know that they are pretty complete. But as you say they send some hopefully anonymous data to EU for their database else there is a data leak that is not according to how it should work and even maybe against the law here. But I do not know the details.
Around 100 was reported as dead with covid after getting the shot e.g. not linked to the vaccine and experts say that that's to be expected by having a running pandemic and
a vaccine that for some very weak does not fully protect, they did not find the numbers glaring. Probably that was mostly the Norwegian cases as well. We had a few Astra Zenica blod cloth deaths in Norway that was linked to the vaccine. We did not have those in Sweden though, but that can be just a coincidence as the number was very few.
Our medical records are complete and all those that die in their database is also included. Researchers can get hold of that information in the process I described. They do not present the data in the official statistic of deaths that are not linked to vaccines, simply that. What I know they do is they compare with background and they examine the medical records so if they find that 10 young people within a day of a shot dies without a comorbidity they would flag it and they would stop the roll out of the vaccine. So we can safely say that in Sweden at worst we have a few dead healthy young one from the vaccine out of totally 5 millions vaccinated age say > 35.