The iPhone 11 I use already has a very good flashlight. Apparently the 10 also has impressive specs. iPhone 13 LED is 100 CRI? - #4 by djozz
I had an iPhone SE 2016 and 2020 that did not have a visibly good flashlight, not sure the CRI but they were ugly. I saw you posted your iPhone 8 and it looks like what mine was too, same camera, same flash, same screen on the 2020 as yours. Ugly light.