Trying to get High Sierra but link at https://support.apple.com/en-us/HT211683 to app store is not valid
How can I get a copy of High Sierra to update my very old MacBook Pro? The link in the support page to the App Store doesn't provide a direct https://support.apple.com/en-us/HT211683 to the udpate.
MacBook Pro 17″, macOS 10.12
