Even though you've an axe to grind, the issues lie with AOSP Keyboard running on any AOSP based OS having a problem with the current versions of Jetpack Compose (used for text input). This is due to AOSP keyboard not being actively developed as the team was branched off to use it as a base to create GBoard which recieves priority.

This can be used safely with all network permissions revoked on MicayOS 😜 or GrapheneOS.