L3 chat button on ps4

I recently started playing Overwatch again and began having problems with the chat button.

Due to the settings I configured myself, I use the L3 button on the controller to perform some attacks, and this has never given me any problems. However, since yesterday, every match I've joined hasn't been able to play properly because apparently the L3 button also opens the in-game chat.

I'd like to know if anyone knows a way to completely disable the game's chat, or at least change it to another button on the controller, since I really like the configuration I had modified and honestly, as a console player, I don't even use the damn chat.