Insights into / Insights on
UsageUse insights into when the emphasis is understanding something more deeply. Insights on is also used for observations or views on a topic, so this is a usage distinction rather than an absolute grammar rule.
Insights into
Use when
You mean understanding of the nature, causes or workings of a subject.
Example
“The interviews provided useful insights into why applicants abandon the form.”
Insights on
Use when
You mean observations or views on a topic, or your organisation's house style accepts that construction; do not treat it as universally wrong.
Example
“The panel shared practical insights on managing remote teams.”
Quick check
insights on used where insight into is the intended formal sense
Usage note
Some formal style guidance strongly prefers into for the 'understanding of' sense.