Magento Open Source supports a wide range of delivery methods, as well as shipping carriers.

According to the Adobe Commerce Merchant Documentation, you can use UPS and FedEx as shipping carriers for your store, but you need to have an active account with each provider and enter your credentials in the configuration settings. In-Store Delivery and Flat Rate are delivery methods that do not require an account with a third-party provider.

References: https://docs.magento.com/user-guide/shipping/ups.html https://docs.magento.com/user-guide/shipping/fedex.html