They don’t care at all. What they do care is sowing polarization and distrust between western citizens. Russia benefits most when we (the West) are divided on various social issues, which leads to distrust of authorities, election of extremists in office and eventually weak and corrupt states and governments that are easily controlled or countered by Russia.
Be that as it may, it’s still an incredibly short sighted decision to use a centralized service that is under 3rd party control for real security sensitive applications.