> save as Word 95

This is for format only and a lossy conversion.

Line break or whatever finer behaviour isn't preserved perfectly.

Or probably any conversion between different office version is a lossy conversion.

They (microsoft) truly don't know how their format behaves exactly at any time I believe.

Even office for mac or office for web behaves slightly different.

I don't believe they have a true spec (A pixel perfect one) about word document. Or they should use it on their office mac or office web first.