GA4 Configuration tags will change to Google tags with new capabilities

Coming soon: Google Analytics:

Your #GA4 Configuration tags will change to Google tags and will gain new capabilities, including settings variables. Your existing measurement will not change, and no action will be required.

According to Google, the tag change comes with the following benefits:

1) Enhanced integration with other Google products: The Google tag will load with the ability to send data to multiple Google product destinations. For example, Google Ads users are now able to configure their Google tag to send conversions via Tag Manager.

2) The Google tag and GA4 Event tags will allow you to reuse parameters at the configuration and event level.

The following template changes will occur.
1) Google tag will use Tag ID instead of Measurement ID
2) Send a page view event when this configuration loads
3) Send to server container
4) Fields to Set

Source:  https://support.google.com/tagmanager/answer/13543899