PHP 7.3 reaches end of support in December 2021 and Adobe Commerce 2.3.x reaches end of support in April 2022. You may want to consider planning your upgrade now to Adobe Commerce 2.4.x and PHP 7.4.x to help maintain PCI compliance.
Rss
Magento_Rss module is responsible for processing all RSS feeds of the application and allows to turn on/off RSS centrally.