Step 1: Create or edit a post or page.
Step 2: Click on the circled + sign to add a new block in the visual editor.
Step 3: When the block window opens scroll down to the Jetpack section and select the Google Calendar block to add it to your post or page.
Step 4: When you have the embed code, copy and paste it into the provided field in the block.
Step 5: Click on the Embed button.