We've created and distributed a Universal app for Intel/Apple Silicon devices, which then gets launched by an Intel-only launcher.
I'm finding that if I launch the app from the launcher, Activity Manager is reporting that it is an Intel application, whereas if I launch it directly, it reports as an Apple (Silicon) application. (Worth noting: this app is completely codesigned/notarized.)
This is definitely odd, because we have other Universal projects that get distributed on different Intel-only launchers (e.g. Steam) and they are properly launched as a native Apple Silicon app.
I apologize that I'm low on information here; happy to do more work to provide additional info.