I have two versions of Photoshop installed on my Macbook Pro. Version 22.5.8 and Version 23.4.1.
Can I delete Version 22.5.8?
Yes if you don't mean delete, but uninstall, if you don't use it and 23.4.1 is working OK.
I like to keep several versions installed, just in case I need to use an older version.
Thank you Bob for your comment and tip about keeping an older version as a fall back.
We appreciate you writing in. As mentioned by the expert above, you can uninstall any version of the applications. It won't impact any other versions installed.
However, it is important to understand that Adobe Creative Cloud allows installing only the latest version and one version before that hence you should uninstall only that version which is available for downloading later(if needed).
Let us know if you have any further questions.