Your work calendar, in your personal Google Calendar.

Calendar Sync copies the events from a Microsoft 365 calendar into a Google Calendar you choose, and keeps them up to date as they change. It is one-way: it only reads your Microsoft calendar, and only writes the copies it makes in Google.

Sign in with Microsoft to let it read your calendar.
Sign in with Google and pick the calendar the copies go into.
New, changed and cancelled meetings follow within minutes.

It is a small, free service run by one person for invited friends and family. It is not a commercial product, and there is no public sign-up.

How your data is handled: privacy policy. Questions: dozier.dave@gmail.com.