I was irritated to find that when I moved a subfolder containing literally gigabytes of files to another subfolder, Insync no longer seems to just move it. It now appears to delete all those folders (and contents) on the Google Drive, and re-upload all those files.
An action that used to take a minute or two now takes hours, and consumes a lot of unnecessary bandwidth.
Insync 3.2.6.40863 on Ubuntu Mate 18.04