Even with the recipe book disabled through Universal Tweaks, there are still toasts that show up notifying you that you unlocked a new recipe. Fast Workbench completely disables the system entirely.

Aren't toasts affected by Toast Control?

They are as well but Fast Workbench actually does the effort of replacing the recipe book with a dummy one, omitting the toasts in the process.

Planned!

@ACGaming In which case perhaps UT could also replace Toast Control rather then do what you're mentioning

If you do add Toast Control, I think having the recipe toasts be automatically disabled when the recipe book is turned off should be a feature (since toast control allows you to choose which toasts you want to disable) because it wouldn't make sense to have them enabled without a recipe book.