Just checked Premiere XML. It doesn't include the VR rotate filter metadata in the XML.
"Translation issue:
Sequence <wells ambi weds> at , video track 1: Effect <VR Rotate Sphere> on Clip <wells ambi weds.mov> not translated."
However it may be possible to script Premiere to export axml for VR clips which could then be loaded in reaper using the EAR Production Suite.
https://premiere-scripting-guide.rea...nentparam.html