For high-quality retouching, the Content-Aware Fill tool allows you to remove unwanted objects by blending them with the surrounding pixels. In more recent versions, this has evolved into Generative Fill, which uses AI to create new content based on text prompts.
Unlocking "extra quality" requires configuring your 64-bit environment correctly and using advanced upscaling tools. Why 64-Bit (x64) Architecture Matters for Quality adobe photoshop 19mulx64 extra quality
A highly customizable, open-source image editor available for Windows, macOS, and Linux. For high-quality retouching