Ren'Py 6.10.2 packaged with the game predates ARM support. You were likely using a 6.99 rebuild offered by a package manager before.
r7 includes the ARM support libs and is free of the bugs present in those rebuilds, but you'll need at least a Pi 4 to run it. (...that, or the Arch install on my 3B is borked and it performs better on Raspbian.)
Actually, I was just downloading the .tar.gz file, extracting, adding the RENPY_PLATFORM variable or something resembling to it and then executing the .sh file. Maybe doing
Well, if you figure out how you've done it it'll be very helpful, since as per what was just explained it isn't possible.
You don't see much PC software running on Android phones, do you? It's for the same reason.