is 100% free, open-source, and available as an official portable app via PortableApps.com . You can save GIMP to a USB stick, upload the folder to your own Google Drive, and run it anywhere. It supports .PSD files (with some formatting loss) and has plugins for Photoshop-like shortcuts.
For this reason, a "Google Drive link" has become internet slang for "fast, safe, and direct download." However, note that , so these links are often blocked or hidden behind link shorteners. Download Adobe Photoshop Cc 2020 Portable Google Drive