If you downloaded from a non-corporate source, use Terminal to check: shasum -a 256 /path/to/Adobe-Photoshop-v26.0-macOS-for-INTEL.dmg
effectively, your Intel-based Mac should meet or exceed these specifications: Operating System Adobe-Photoshop-v26.0-macOS-for-INTEL.dmg
: A dedicated environment for ideation where you can generate multiple images using Adobe Firefly If you downloaded from a non-corporate source, use