The problem with SVG is that the conversion of fonts to vectors (using dvisvgm) can cause distortion to the original shapes, and after importing them inside LibreOffice and then you export the ODT file to PDF, another distortion is caused by Writer.
To avoid the issue of converting texts to vectors, it would be much better to export the original math expression from LaTeX to PDF (e.g using pdflatex compiler), the output PDF is generated with its embedded fonts so there is no fear from any kind of distortion, and because Writer already supports inserting PDF drawings, then after saving ODT as PDF the whole PDFs drawings will be exported with theirs embedded fonts, and the final PDF output will not suffer from any distortion.
Ticket moved from /p/texmaths/bugs/166/