I read that this was considered back in 2019, is this still is the works?
Currently since google earth path type KML files that are not closed loop are not supported by QGC to be allowed to be imported as waypoint mission I found a time consuming work around that i came up with,
Create polygon kml using google earth pro
Open Polygon KML within PC version of QGC as survey mission
precisely add waypoints manually tracing the imported polygon using add waypoint option. Note: which requires zooming way in as my parallel paths that are within feet of each other are so close and doing so on Android version of QGC would be impossible
Once all waypoints have been added, delete the survey mission leaving me with my most accurate waypoint mission I can get.