Given the security risks and instability of "portable" legacy software, consider these modern, one-time purchase or low-cost options: Affinity Photo
Not being able to run CS6 on an Apple Silicon (M1/M2) based Mac is not a processor limitation, but rather an operating system one.
Some groups take the Windows version of CS6 and wrap it in a compatibility layer called (or Wineskin). The result is a .app bundle that contains the Windows EXE plus a translation layer.
To make your work look professional, focus on these CS6-specific tools: Adobe Photoshop CS6 Tutorial for Beginners (Part 1) 20 Nov 2013 —
: CS6 is a 32-bit legacy application. It will only run on macOS versions from 10.6 (Snow Leopard) to 10.14 (Mojave) .
If you own a valid CS6 license: