According to the available information, the remote control with the manufacturer ID MR25GB.AEU is not explicitly compatible with your LG OLED65C8PLA from 2018. The official LG sources do not list any compatibility with the MR25GB series for this model, but refer to the Magic Remote AN-MR18, which was specially developed for 2018 LG TVs such as the C8. There is no confirmation that the MR25GB.AEU will work with your TV. I am therefore not entirely sure whether this remote control will work properly for you. It's best to check directly on the official LG website or ask LG support to be on the safe side.