how can i start screen recording in my new m31

[covid15032020]

Please 

[Viki100420]

Check this webpage it may help you👇
https://www.devicesfaq.com/en/record-screen/samsung-galaxy-m31#:~:text=How%20to%20record%20the%20scr....

[Ehsank]

download screen recorder from playstore

[Sidhabhi]

There is no official screen recorder..so download mnml or az screen recorder from play store

[covid15032020]

but in google its shows that m31 enabled screen recorder

[Sidhabhi]

I don't think so, to get confirmation on this, swipe down notification panel and check screen recorder icon(if its not available that means, your device doesn't support this feature)