Browser is most used program by me and by most users of internet, so it is important for browser to be high efficient for daily routine. Altough browsers have embedded translation features and exists a lot of browser extensions for translation, all of them have bad quality and absolutely not accepta...
I've been using it for a while, rather successfully. In my specific case scenario, I frequently need Chinese (both Mandarin and Cantonese) websites translated. Before Linguist, I'd have to have Chromium somewhere just for that specific purpose. Now I can do it from Firefox, and I love how easy it is to use. I'm still sad I need to use either GTranslate or Yandex in order to translate Chinese, so it's being used to track me online and there's little I can do about that. Bergamot sadly doesn't offer Chinese, and I don't believe it will in the near future. I hope some Chinese offline translator is offered at some point...but I have so far no idea.
You're right, resources are limited and a new languages appears not so fast as we wants. Maybe Chinese developers will collaborate and release their own models for a Bergamot. Work with community are important to achieve the goal when we want to unify translation.