A: No. macOS Catalina is Intel-only. It will not boot on Apple Silicon (M1, M2, M3).
https://swcdn.apple.com/content/downloads/... (Note: Apple changes these hashes frequently. To get the live link, you must use the macadmin-scripts GitHub tool or search for Apple Catalog 10.15.7 combo update ) download macos catalina 10157 dmg file hot
You want the file. You want it now. And you want it safe . download macos catalina 10157 dmg file hot