Send intent from Chrome opens App in Chrome

When I share a link from Chrome to my App, it doesn't open in the App's process but in Chrome itself.

Intent opened in Chrome, not in App process

I have an Ionic 5 App with React and Capacitor as Bridge. My share target is configured as follows:

        <activity
            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale"
            android:name="de.mindlib.MainActivity"
            android:label="@string/title_activity_main"
            android:theme="@style/AppTheme.NoActionBarLaunch"
            android:launchMode="singleTask">

            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>

            <intent-filter>
                <action android:name="android.intent.action.VIEW" />
                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />
                <data android:scheme="@string/custom_url_scheme" />
            </intent-filter>

            <intent-filter>
                <action android:name="android.intent.action.SEND"  />

                <category android:name="android.intent.category.DEFAULT" />

                <data android:mimeType="text/plain" />
            </intent-filter>
        </activity>

I would like to have the share target open in the App's process. Can anyone help?