Forgive me if this is obvious, I'm sure the Community responds to questions like this a 100 times a day, but, is there a way to install an older version of Adobe Creative Cloud and the CC apps, such as InDesign, on an older iMac (21.5-inch, Late 2011) running macOS High Sierra in 2022? I understand the current versions of Adobe apps don't support this version of macOS.
IF/When you do have a download, be sure to copy it to AT LEAST one external device -you should ALWAYS keep a copy (or two!) on an external device -since Adobe DOES SOMETIMES REMOVE OLD VERSIONS FROM THE SERVER -a usb flash drive or external hard drive, or write to a CD or DVD
you must have a subscription to use non-current versions. ie, they're not available for trial users.
otherwise, as far as i know, you can access any previous version. only the current and one major prior version are available via the desktop app. adobe links to many prior versions are available via prodesigntools.com. and other versions are available via adobe support.