AnySoftKeyboard works on Android 12 and 13 and has arrow keys available in one of the default layouts. I’m actually using my own customized layout since it was pretty easy to make one a few years ago. If you want a layout that is customized to your needs and has all the exact characters you need, I would recommend looking into it. I think it was just editing an XML file and building the layout in Android Studio (the layouts are installable as separate add-ons for the main app).