Send submissions to Google drive Shared folder

Also, i am wondering with the Google Drive or Gsheets plugin, are we able
to save to Shared drives? or only "My Drive" Folders?

Unfortunately, you are able to add new submissions only to My Drive folder.

However, you are can create a shortcut and place it anywhere you need it.

You can read the following article to see how to create them:
https://support.google.com/drive/answer/9700156

Please let us know if you have any additional questions.