If you absolutely need the CC 2018 version for compatibility with legacy plugins or workflows, purchase a used license from an authorized reseller (though Adobe no longer sells perpetual licenses for CC).
If you ignore all warnings and still plan to search, at least know the red flags: Adobe Photoshop Cc 2018 Full Portable Google Drive --
Photoshop "portable" is a well known hack. It's pirated and illegal, end of story. This isn't the first time we've heard about it. Portable verions of Lightroom - legit? - Adobe Community If you absolutely need the CC 2018 version
For quick edits and social media graphics, the free version of Adobe Express offers many of Photoshop’s core "one-click" features in a browser-based format. This isn't the first time we've heard about it
This search query represents a specific user need: the desire for the robust feature set of the 2018 release, the convenience of a "portable" version that requires no installation, and the high-speed download capabilities of Google Drive.