If you want to legally, you have three primary avenues. Avoid shady websites; these are the official methods.
To download the for free, you can start a 7-day free trial on the official Adobe website. While the software requires a subscription after the trial, the beta version is available to anyone with an active Creative Cloud membership (including the trial) through the "Beta apps" section of the Creative Cloud desktop application. Deep Feature: On-Device Generative AI (Remove Tool)
Unlocking Creativity: The Truth About Downloading Adobe Photoshop Beta for Free