As described in solution of old post Attachment preview does not show PDF documents in Windows client we needed to wait for a new release of evince with the MR merged.
A I see in release 43.0 it was included in September 22.
When will be this feature available in Windows client?
The CI build is currently failing, until this is fixed upstream if anyone wants to try building tryton using the new evince feature just let me now so I can share the build package and the steps to install it manually.