Hi there!
As noted in the release notes for the new blocks, this is an early preview of the blocks that we’ve released in the feature plugin so we can get feedback from folks willing to try the blocks before we get to the point for considering including the new blocks in WooCommerce core.
For the initial iteration of this preview, the blocks only have support for a limited set of payment methods (you can see which are supported in the release notes). We are going to be adding support for payment methods in future iterations and are listening to feedback and observing gateway usage (from opted-in tracking) to help guide what we prioritize.
If you’re interested in trying out the new blocks once they have support for your payment methods, you can follow the developer.woocommerce.com blog for updates or you can watch the changelog in updates to this feature plugin where we will link to any notes about a release (or have details on additional payment method support added).
