Responses
I noticed that as a well. The R15 official is definitely the better quality.
the r19 is from L/zhin while the r15 is from M/nta, the L site always have misspellings on their translations and one time they forgot to translate and leave some panels with spanish speech bubble, leg/l cites have different fonts usually, depends if the story will transfer to another cite. Sorry for the misspellings I need to do that so they dont delete my comment
are the mature official actually official translation? idc if they are or not cause theyre fine but just generally they dont seem like theyre the officials w all the misspelling of words, the font choice, n the diff in translations between it and the r15 officials