FEX is used to run 32bit games. This isn't Android exclusive compatibility layer, it's Linux, on Linux PC the same approach is used.
tangential, but how to run 32bit android games on 64bit android?!?
since like android 13 era, devices no longer support 32bit apps, and android is missing 32bit libs.
Is there a compat layer for 32bit android?
Check my project on Github, Reddit, Youtube for more details.