Discord being a bigger company, I'd think the switch just for this reason could be seen as a protest which should help pressure them into pressuring relevant parties. Though I agree people should also pressure their politicians directly too.

If by the bolded "them" you mean Discord... they are not doing this because laws. Those apply in some countries only. Unless you want to argue they are preparing for more countries implementing this.

They (Discord) will not pressure anyone because this is something they want to do.