I highly doubt it. Remember they’ve been selling Apple Silicon in iDevices since long before 2020, and they don’t get that 10 year support treatment either.But all in all, I really expect Apple to stretch the macOS support for Apple Silicon up to 8 years, plus the two usual years of security fixes and Safari updates. That would make a total of 10 years of support. Of course, dropping some features after 5 or 6 years like they do on iOS.