Earlier quoted context omitted.
I spend less than 10% of my time at my computer maxing my processor. I spend more than 90% of my time using the keyboard. I’ve seriously considered selling my 2017 MBP and buying a 2018 MBA. Then I heard the problems still haven’t been solved with that model and nixed that idea. But I would much rather have a slower machine with a reliable/comfortable keyboard than a faster machine with a brittle/uncomfortable one.
Speed and utilization are not the same. My 2018 MBP was a great speed improvement over the 2015 MBP I previously used, even in cases where the 2015 MBP wasn't using all cores (which really rarely happened, since for the workloads I use, multiple Electron apps and Docker for Mac, typing in Slack would start stuttering as soon as multiple cores were in constant use). I don't think it was ever usable enough at 6-7 cores…
I use a mid 2012 retina that I bought used and have spilled water on 4 times. I keep 10 chrome windows open with around 15-20 tabs open each. In addition to microsoft word, sketch/figma, atom/pycharm/rubymine/intellij, multiple preview books, multiple iterm instances, postgres, and the Books app.
I don't have any trouble except when using docker for mac (which I just use the cloud for now) and photoshop.
I would like to get a new laptop though.