iPad OS 26 is just as bad, if not worse. It's the Windows ME of tablet OS's: ugly, near-unusable, and riddled with bugs.
Just one example: I was excited by the idea of having two apps on screen at the same time: there are two I like to look at side-by-side all the time. But one of them (an iPhone app) randomly decides to switch to landscape mode, making the layout unusable. More generally, the window controls keep getting activated unexpectedly by taps when I use full-screen apps like games, resulting in the window reverting to not-full-screen. So I guess I'll just have to turn that feature off until it's actually usable.
Unless it has a huge memory leak that isn't fixed for years and causes it to be virtually unusable for anyone it's probably not the Windows ME of Tablet OS's.
Maybe the Windows Vista of Tablet OSs though.