Why is Big Sur not available through the download links on Apples support page.
On Apples support page "How to get old versions of macOS" (https://support.apple.com/en-us/HT211683), all other installers are available except Big Sur. Before Monterey was released, Big Sur was not listed, because it was visible in the App Store. But since Monterey, Big Sur (and other older macOS versions are unlisted in the App Store, but still available. I believe I downloaded Big Sur shortly after Monterey came out through this page, but lately it keeps saying not available when it opens the Apps store.
Oddly, a lot of my clients that are running Big Sur are reporting that when they run Software Update, they get stuck on checking for updates. Even if they run software update from the commend line to get the latest Big Sur, it reports that it is unavailable.
Has Apple pulled Big Sur for some reason? They are a couple of critical security updates released last week that my client cannot get, and I don't want them going to Monterey yet as that is still a dumpster fire.