Description

OnePlus Messages (https://play.google.com/store/apps/details?id=com.oneplus.mms) Only used on OnePlus 8 / 8 Pro according to the description. Probably safe to remove, just make sure to install another SMS app to not lose that functionality; QKSMS is a good FOSS replacement for basic SMS functionality and Google Messages is an option if you need full RCS support.