I also suspect faulty hardware in these scenarios. I see far fewer bugs with my fully loaded 2016 MBP 15 than I did on my 3yo MBA.
I'd also be interested to know whether the folks experiencing these bugs imported the apps and settings from their old system. In my experience, it's fairly common to see glitches resulting from corrupt drivers or configuration after setting up a new machine by transferring from an old.
I'd also be interested to know whether the folks experiencing these bugs imported the apps and settings from their old system. In my experience, it's fairly common to see glitches resulting from corrupt drivers or configuration after setting up a new machine by transferring from an old.