Before 6/17/2021, full page URL greater than 255 char is available in Data Warehouse reports. However, when all report suites were updated to have Same-as-SiteCatalyst VISTA Processing set to ON since that date, the Page URL dimension in data warehouse is now truncated to 255 char.
To have no character limit for the Page URL dimension in Data Warehouse is important because this is the only place where full page URL is available in reporting and I have many page URLs that are super long. These long URLs are generally as a result of needs to use 3rd party content and can't be easily minimized for publishing.
While I like the idea to make sure data warehouse reflects workspace reports, please allow exceptions for out of box Page URL.
