If everything goes well, you will receive a success message like this.
Simply scroll down and then click on 'Allow' to continue. You should grant the Calendar app certain permissions. Now you will be taken to the Google Consent screen. If you are using two-step authentication, which is always recommended, then also enter the verification code and click on the 'Done' button. Just sign in with your Google account's username and password. The above action will take you to the 'Connecting to a Service' screen. Now choose 'Google' from the list of available options. In the next screen select the option 'Add account.' If you've linked your Microsoft account, then that account will be displayed here by default. The above action will bring forward the settings panel. Once the Calendar app has been opened, click on the Settings icon appearing on the bottom left-side.
