Thank you for the explanation. I was able to install the emmc version.
For me as a novice to this operating system, I came to the Manjaro webpage, downloads, found the standard download for the image there, downloaded the general user guide (since there's no how-to on the download page) and got stuck because there is no info on this particular setup. Searched the forums, then got confused about the difference between the 2 versions, went on Pinebook Telegram where someone explained me.
I think it would be useful if the download page contains the two image versions with a brief explanation and how-to (or reference to an updated user guide). What do think? I could write an update to the user guide or a how-to to include this info if you like.