What does "shortform" mean?

Running for a relatively short time, typically no more than two minutes.

Shortform

adj

adj ·Rare ·Advanced level

Adjective

1
Running for a relatively short time, typically no more than two minutes. not-comparable
2
Relatively short and punchy, lacking detail or in-depth analysis. not-comparable
"a shortform article; a shortform news broadcast"

"a shortform article; a shortform news broadcast"

From short + form.