to see if 19.x is still available for your specific license. Adobe Support : Users often have success by contacting Adobe Customer Support
Because Adobe generally restricts installers to the current and one previous major version in the Creative Cloud app, finding older 2018 (v19) files can be difficult. Creative Cloud Desktop : Check the "Other Versions" section in the Adobe Creative Cloud Desktop App adobe photoshop cc 2018 1900 patch for mac extra quality
Software performance is tied to system hardware and official updates, meaning a third-party patch cannot inject "extra quality" into the software. to see if 19