Android Wear support

Android Wear has no documents UI/file provider. So much stripped out that even third party applications can't register for the intent. I have InstallWithOptions and Shizuku installed on my Galaxy Watch Ultra. I sideloaded MiXplorer but since InstallWithOptions doesn't register a file handler for xapk, I am unable to load it via that path. I have to go through this path since I need to set the installation source for the application to com.android.vending. Is there any way I can invoke InstallWithOptions via adb shell/intents to get an xapk installed?