If you want to see your Notion events in your Google Calendar, it's easy with Notion Power Up. In fact, this doesn't just apply to Google Calendary, but ANY calendar application that takes iCal feeds (eg Thunderbird, etc).
Given any database with a date field in Notion, the first thing we'll need is the URL link
Note 1: Your dabase must have a date field for this to work.
Note 2: Your database cannot be too large (<100 entries). If your database is larger, then you can create a view of a subset of the data and use the link to the view instead.
In Notion Power Up, select
Calendar Feeds from the menu, and click on
Create iCal Feed
Paste the URL from step 1 into the
URL of Notion Database field, and select the appropriate fields for
Date Field and
At the bottom, you'll see the
Feed URL. Copy this to your clipboard as you'll need it next.
Now, go to your Google Calendar, and click on the
Other calendars and select