Hi,
Thanks for your rating. It's great to hear that you like the add-on. 😀

If I understood you correctly though, you could not choose the download directory for saving the QR code image.
Technically, the add-on does not influence this and just let's the operation system decide where to save the file. So actually you should see a file picker like “Save a file", which lets you choose your location.

If you have further issues or questions, feel free to ask or suggest a feature by opening an issue on https://github.com/rugk/awesome-emoji-picker/issues/. Thanks.

Best regards,
rugk