Great info, thank you for that.
Update: found that you can fix Samsungs aggressive memory settings and fix this very easily "requires root access" http://www.ibtimes.co.uk/how-fix-memory-ram-leak-issue-galaxy-note-5-1519359
So you could do all of that, it may or may not fix the issues (ibtimes is garbage), and you'd still be stuck with all of the other downsides of the Samsung experience...........
Or you could just buy a Nexus. It just works™.