Ask HN: Anyone integrating enterprise Outlook and Google Calendar?

I work in education part-time and am also a one man saas company. The education side uses enterprise Outlook with lots of restrictions on syncing etc. For my own work I use Google Calendar.

Has anyone solved the calendaring issue of combining Microsoft enterprise and Google calendars?

I am doing some naff workaround at the moment using Microsoft Flow to add events form Outlook to Google calendar. Not ideal at all.