Larian Studios Forums Baldur's Gate III Baldur's Gate III - Multiplayer Discussion Xbox series X version: gamertags overlapping minimap on local split screen co-op

Finally a workaround has been found.

Use a basic set of plug in headphones with mini-jack stereo connector and plug it to the Xbox controller.

or
plug in a mini-jack stereo adapter to the controller

or (best solution in my opinion, the quickest)
take a set of stereo headphones, even the most garbage ones will do and cut the wire so that you keep only the mini-jack plugged to the controller

10 seconds or less and the gamertags go away.

Remember to uncheck the option "disable the speakers when headset is active" under the console settings>general>audio and volume output>additional options.

If it's not working just restart the game or the console and unplug/plug the connector.