Thanks to comedian JP Sears and cartoonist Anne Cantstandit for clarifying the situation.
Alberta’s claim that the leading cause of death in 2021 is “ill-defined and unknown” is best explained by comedians. JP Sears explains “unknown cause” disease:
Drug companies, governments, and media search for answers:

Here is our Aug 1st exposure of Alberta’s unusual 2021 death statistics: https://drtrozzi.org/2022/08/01/leading-cause-of-death-in-alberta-is-unknown/