alt Hacker NewsYes. This page has several ways to get older macOS versions: https://support.apple.com/en-us/102662, but the earliest macOS version you can use on Apple Silicon is macOS 11.
If you move your home directory to a different disk partition, you can even share it between two different macOS versions!
these Macs can't go below Tahoe. People on Mac Rumours were complaining about M5 MacBooks unable to install Sequoia, so it's safe to assume Pro/Max chips will be the same.