UserFlow - show duration between timespan start and finish

[doteric]

Feature request summary

I would like the lighthouse User Flow HTML report to contain the duration between the timespan start and finish alongside the metrics. Currently there is only TBT, CLS and INP displayed in the timespan report meanwhile a duration would be useful especially that timespans are often used to calculate the time to get from one place on the website to a different one.
What do you think of such addition?

If you would like this feature then I think I would be able to contribute with the addition.

What is the motivation or use case for changing this?
More informative metrics on the LH User Flow Report.

How is this beneficial to Lighthouse?
A useful metric on the timespan report for LH User Flow Report.

[adamraine]

I don't no if this fits as an actual metric, but this is certainly diagnostic information that we can provide.

[doteric]

Hey @adamraine 👋
Sure, it's a good start. Would it be visible somewhere in the html report btw?
Tracking the time between certain steps seem like an essential think for the user journey/flow, what do you think?

[adamraine]

Would it be visible somewhere in the html report btw?

Yes

Tracking the time between certain steps seem like an essential think for the user journey/flow, what do you think?

I do think it's useful, I just don't think it makes sense to work it into the score. I was imagining something at the bottom of the report in the run info section.

[doteric]

That would be totally fine. I also wouldn't put it in the scoring, instead somewhere apart from the scores that is easily accessible would be preferred. Initially it could be enabled/disabled on demand maybe?