Translator apps

How does everyone feel about local translator apps? I need a translator App for work with tts. I ditched google and got something called Rtranslator, and Sherpa tts which uses something called piper models.

I'm not sure what all of that amounts to, or if this any better than using google with llms? I can barely understand the language used when I try to learn what these components are. I'm not even sure if it is AI, or even the same kind of ai as something like google translate. Is is just as bad for the world as everything else? Or is it any better in any way other than being Foss and local? Do those things even matter when fighting ai?