I've continued to use Photoshop CS6 for some years now, and for the first time recently I got a little pop-up to say that this version is no longer supported. The timing of the pop-up coincided with the change in the new terms of use.
Previously, there was an option - hidden
deep within the settings - of Photoshop that you could turn off the sharing / Adobe access to your files. I haven't checked, but it would appear now that this option has been removed.
While you can use photoshop offline, depending on your subscription, you must log into your Adobe account at least once ever 30 days if your'e billed monthly (I think it's 90 days if you bill annually) to continue to use the software, so even working offline Adobe will eventually get the opportunity to see what you've been doing.
It will be interesting to see what comes from this. I'm going to start exploring other image processing programs. I wonder if Adobe has gone a step too far, and shot itself in the foot.