I posted the video in here somewhere, you can find it on my channel. I figured a written version would be a nice accessory if I went too fast on the video.
Here's the written version: https://onyxretrocorner.com/ffxiv-android-guide
I know this isn't about the game specifically, but I am emulating the full game (not the Japanese mobile version) on Android using the emulating handheld, the Odin 3.
I show how I did it for both Winlator and Gamehub. If you have any questions, feel free to ask. Obviously controller is not as great as keyboard, but it works okay and I can use the touch screen for mouse controls as necessary.
I think it played well. It struggled in some areas on my Steam Deck back when I played it the first time, so I imagine it will struggle in those areas too.