As the title says, I have both Curios and Trinkets with Sinytra Connector + Connector Extras on a modpack that I experiment on.
I was wondering if there is a way to easily remove the compatibility for one of them via the files or if you can add a config if both are present?

There is no way to change this behaviour currently, I am somewhat struggling to understand why you would need both Trinkets and Curios installed at the same time?

I have Trinkets for Daedelus's RPG Series mods that I added with Sinytra Connector and Curios for the main mods on the modpack

This is a really strange setup, I can look into something for this but not anytime soon