I digged a bit into the source code and the apk. From looking at the code alone one can't tell if the crash report is actually enabled, the build configuration depends on some unpublished file. But looking into the apk allows to reconstruct it. These are my findings:
the crash handler is compiled in and also enabled (BuildConfig.ENABLE_ACRA=true)
the crash handler is configured to dialog mode. According to the ACRA documentation (https://www.acra.ch/docs/Interactions#dialog) that means that user interaction is required for sending (a popup dialog with a cancel button).
4.1. If the app crashes, you may be asked if you wish to submit a crash report. If you accept, your device information and crash details will be sent to us for the purposes of investigating the crash and improving the software.
Can you give more details of the scan result? Exodus only lists the Play store version. I installed the F-Droid version but Exodus app reports it as "same version" and just shows the clean Google Play Store results. This is obviously wrong, the SHA1 listed for the Play Store version on the Exodus website is different compared to the F-Droid .apk I have installed. Sadly the Exodus website does not support scanning F-Droid apps from third-party repos so I have no idea how to scan it.
That being said, according to the privacy policy (https://voiceinput.futo.org/VoiceInput/PrivacyPolicy), the F-Droid .apk version should have some kind of crash report build-in. So I could imagine that this might get flagged.