The alternative is to embrace minimalism / the FIRE lifestyle and hopefully skate by long enough to not have to work by the time the company folds and live off of investments -> then into retirement).
I think most "underwork" on the job is a motivational issue and stems from one of a few overlapping reasons:
1) No way to promotion/advancement (dead end job)
2) Overqualified and bored
3) Unclear goals, no feedback, and/or undiagnosed ADHD.
4) None or negative social value to the job - for example selling shady financial products to seniors (so that slacking becomes a social good)
I think most "underwork" on the job is a motivational issue and stems from one of a few overlapping reasons: 1) No way to promotion/advancement (dead end job) 2) Overqualified and bored 3) Unclear goals, no feedback, and/or undiagnosed ADHD. 4) None or negative social value to the job - for example selling shady financial products to seniors (so that slacking becomes a social good)