It would be nice to be able to save your ride and then return to the game, ride another segment, group ride, ect.
Have it to were you have “Save & Exit” and “Discard” “Save & Return” options.
Make sure you vote up the existing request so Zwift knows what the users want: https://support.zwift.com/hc/en-us/search?utf8=%E2%9C%93&query=Save+without+exit&commit=Search