Version 8.32 (26 February 2020): Added new Insider and developer versions up to build 19569; added more Dell models and images; added Windows 10 Home S (Dell).
No, the Latitude 3590 and the G3 3590 are different.
In all likelihood though, the iso files for the G3 3590 will be identical to the other G3 35xx files, such as the G3 3579.
If you want me to check for G3 3590 files anyway, please send me your service tag, and I'll add the downloads to the list.