Raw population density can be misleading.

Australia for example has a 25mill population at ~3people per km2. This is effectively worthless as a measure as ~95% of the country's population lives in major cities with population density of 4k-8k per km2.

Not that I know of. The stats are designed to be maximally impenetrable and misleading, and I'm not entirely sure why. Basically the stats that matter are: hospitalizations, ICU bed utilization, and excess deaths. Everything else is bullshit. Yet you won't find any of these stats for most countries, certainly not in an easy to digest form.