Permanently disable chat preview in meetings

I don't want to see chat previews so I have to choose the option to disable chat previews every time I join a new meeting. I would like to have the option to disable this feature permanently. I have to keep selecting this option every time I join a new meeting, as well as every time I join a breakout room, and every time I come back to the main room after leaving a breakout room. There should be an option to just disable this feature permanently, it is distracting.