Dieter and Jeff have already raised the question that immediately came to mind when I glanced at the latest poll results - how do 3 members have RTMM for FS2020 when from all I've read it isn't comaptible with FSX/Prepar3D scenery? For that matter, X-Plane should probably be removed from the poll, because it isn't possible to install the RTMM sceneries for it.
I've got to say, that if the RTMM forums become anything like the Steam FSX forum, where every 3rd post is FS2020 related, I"m going to become grumpy darrn fast . My recommendation is for the the poll creater to remove FS2020 and X-Plane, then add back FS2020 once it's been proven that Tongas X and RTMM scenery can indeed be installed for it.