The Apple of today does fix holes as soon as they can. But they don't really need to steal jailbreak tweaks anymore to figure out that people want to be able to change their homescreens…
There was a lot more than that which was copied, honestly. Notification center. Control center. Widgets. Low power mode. Notifications where you can reply in line. Probably hundreds more tiny quality of life things too that have made their way into iOS over the years that were first seen on cydia. Here's a list of 60 of them at least (2018):
https://ios.gadgethacks.com/how-to/60-ios-features-apple-sto...