The test will be comparing rates between users and non users. If you want to tie this to vaccine you will have to do a different study.
Agree 100%. I am simply sceptical about 20 somethings dying from smoking weed (no matter how strong it is now a days). Or because they are sedentary. (youth has many advantages). But I am not ruling it out. It’s just there have been books written about young people and athletes dying of heart attacks after the jabs.