I put them back to how I have always had them, then not long after they’ve reversed order again. Now, the bottom 4 icons (dock?) keep rearranging themselves in reverse order. Updated for the first time last night to 13.1.2. The worse part is that the issue has dragged itself across the years and through several iOS updates. This doesn’t hold true every time, however. What is known about the bug though is the fact that it occurs when the screen is rotated to landscape mode and then back to portrait.

To make them aware of it, you can try giving feedback through this link. It is actually just a software bug that Apple is either too lazy to fix or is simply unaware of. Is it a ‘feature’ of sorts? High unlikely. Moreover, the reason for this behavior is unknown. While reports have originated from various iPhone models, quite oddly, the issue does seem limited to older ones like the iPhone 6s, iPhone 7, and the iPhone 8, including their Plus versions of course. Updated to IOS 14 and ever since then the bottom 4 icons (dock?) keep rearranging themselves in reverse order. Hence, the complaints have only continued and some of them are given below. And although reports of the issue have been doing rounds for years now, not even iOS 14 has addressed it.

IOS has a bothersome issue wherein bottom row (dock) icons keep rearranging themselves on iPhone.

Icons for my phone