This was tight. Very smart to bring back Frank Grillo but overall I personally preferred the first two. I love DTSx tracks because they are always a little overkill which sounds great at home. The picture quality was again decent with no obvious issues on a standard sized HDR TV.
It's obvious that they left it open for a potential fourth Purge. Obviously they've done the "First Purge" since then but there is definitely an interesting film awaiting how the US deals with the potential rise in crime post purge. Not forgetting the NFFA who won't exactly go quietly.