Make sure to check your macOS version and backup your system before proceeding.
If you have a Creative Cloud subscription, you can often access older versions directly: Creative Cloud Desktop App Find Photoshop and click the three dots (...) next to "Open" or "Install". Other Versions and look for Photoshop CC (2017) 18.x. How to download a Photoshop 2017 afte the CC update in 2019 Download Adobe Photoshop CC 2017 V18 DMG For Mac OS
If you are attempting to run this specific version on an older machine, ensure it meets these minimum specs: Make sure to check your macOS version and
: Redesigned to be more dynamic, it displays information based on the current selection, such as character settings for text or document dimensions. Download Adobe Photoshop CC 2017 V18 DMG For Mac OS