There is no single "direct download link" for a static 2021 file because Adobe uses a Creative Cloud delivery system. However, here is the authoritative way to get Photoshop 2021 (version 22.5.1) for your M1 Mac.
If you are searching Google for a direct .dmg or .zip download link from a third-party site (like a forum, torrent, or file-hosting site), please be aware of the risks: adobe photoshop 2021 mac m1 download link
If you’re using an Apple Silicon Mac (M1, M1 Pro, M1 Max), running Adobe Photoshop natively—rather than through Apple’s Rosetta 2 translation—offers significantly better performance, battery life, and responsiveness. Adobe introduced native M1 support starting with Photoshop version 22.3 (released in March 2021). Here’s how to download and install it correctly. There is no single "direct download link" for