Why are the experimental webkit features beneficial?

Hey there oneil115,

Thanks so much for using Apple Support Communities.

We see you were wondering about the experimental features in Safari on your iPhone. Most users won't need to access or utilize those features in Safari however for certain users, they may be helpful in their line of work or for their specific needs. With regard to WebKit, this is the web browser engine that Apple developed that is utilized in apps like Safari, Mail and the App Store, as well as many more. If you are an iOS developer, then you may want to learn more about WebKit which you can do here: WebKit

However, if you are not a software developer, we would recommend not toggling those experimental features on as they could create unexpected issues in the apps you're using.

We hope that this information is helpful.

​Have a great day!

They are intended for web developers.

If you are not a web developer or involved in testing websites, they are not meant for you.

Best advice we can give you is leave them alone since you don’t know what they are.