I don’t know if you are intending to use Fix Songs over your whole collection or one album at a time, but if the former I would recommend setting to No, running Fix Songs and only if happy with results running it again and this time setting it to Yes, if matched to release
This is because if SongKong updates the metadata that is in some way not to your liking, and then renames the file based on the new metadata, you have a double whammy of metadata problem and filename problem. Unlikely that SongKong will match to the wrong album (although compilations and box sets are more difficult) but formatting options may not be quite as you would like. Also some Melco customers get confused because they make modifications in SongKong but then view the results immediately in their control point without updating MinimServer first, so then the files cannot be found !
In fact in the forthcoming SongKong 9.0 I am actually moving the rename function away from Fix Songs and into its own Rename Files task
Then I would recommend Yes, if matched to release instead the other options because only with this option are you guaranteed that the whole set of files have been matched to same album and hence any sensible rename mask will ensure that the tracks are kept together in same folder.