rough idle on start up?

Hello,

Does it only have rough idle when you first start it, then it runs normal?
It could be a vacuum leak that goes away after the engine components warms up.

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

It can also be due to weak spark plugs, or dirty throttle body or air flow sensor.
Sometimes rough idle can trigger the check engine light.
Is your engine light illuminated? If so, having the vehicle scanned can help with the diagnostics.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please let me know of any questions.
Thank you.