I think the trick is to write in a way that gets other people to read it, and in a way that's cognisant of the fact that that reading will be more akin to skimming. Gratuitous use of bullet points and bolding two or three key takeaways are the main quick hacks I use to in support of that goal.
Longer-form writing and proper prose are more useful for e.g. tutorials, but things like user stories or other reference material should really be written to be skimmable, in my opinion.
Exactly. When I summarized a complex technical issue to a mixed audience, the TLDR version was in nested bulleted format, each line limited to ~5 words. Higher level bullet points were targeted at non technical readers and sub points aimed at the techie ones. Non technicals can opt not to dig further into sub points.
Longer-form writing and proper prose are more useful for e.g. tutorials, but things like user stories or other reference material should really be written to be skimmable, in my opinion.