I have an iPhone 13 Mini and upgraded is iOS 26 and it seems fine to me.
I also have a 2018 iPad Pro and put iPadOS 26 on it and I haven't had any issues on it either except sometimes my keyboard is slow to connect. I'm not sure if it's the software or hardware though.
I also have a 2018 iPad Pro and put iPadOS 26 on it and I haven't had any issues on it either except sometimes my keyboard is slow to connect. I'm not sure if it's the software or hardware though.