'Dreamweaver file compare on Mac - how to configure the tool?

On Macbook Pro, I am trying to configure Dreamwaver so I can compare my local file with remote server, I'm selecting 'FileMerge.app' since I can't locate 'opendiff' at /usr/bin/opendiff (or /Developer/usr/bin/opendiff) as mentioned at https://helpx.adobe.com/dreamweaver/using/comparing-files-differences.html#:~:text=In%20Dreamweaver%2C%20open%20the%20Preferences,select%20the%20File%20Compare%20category.

Using the above setup, When I compare it simply opens FileMerge with blank left and right files to compare, I thought it would automatically select the files and show the comparison, any thoughts on how to fix it ? or use any other tool ? (I see same issue for Xcode and VSCode) Dreamwaver Preference Screenshot

FileMerge Screenshot



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