Thank you for starting this thread, despite being somewhat involved in the app ecosystem, I did not know about Pi-Apps.
I’ve installed it, and the launcher starts, even fits the screen - but it seems blurry, so it’s likely using Xwayland. I’ve been curious about the Discord client (since “how to run discord” is such a frequent questiion), and it’s actually Webcord, so all the risks of running a third-party client (e.g. being banned) are there, it does not work well on mobile - imho you’re better off with just running the web client in Firefox (then you don’t have to suffer the current of running Electron on Wayland/Phosh, which is generally not a desirable experience) or one of the alternative clients.
Screenshots:
