@WarriorMe to suppress the duplicate labels in RRF we would need to try to work out whether a M486 refers to the same object that has just been labelled by a comment; and vice versa. Alternatively we could provide a special version of M486 that instructs RRF to ignore all remaining M486 command sin the file.
Regarding which form of labelling we prefer, either comments or M486 commands that include the object names provide all the information that RRF needs. If the M486 commands generated by SuperSlicer do not include the object names, then comments would be preferred.
PrusaSlicer appears to generate comments but not M486 commands when the Label Objects box is checked, at least when there is just a single object in the print.