Seems gone. I can't say I've personally ever used it, so that's probably why it's one of the first keys to go, but I know that doesn't help you.
> Where are the Home, PgDn, PgUp, and End keys?
They're available via Fn+Arrow Cluster.
I rely on it heavily and I'm sure many others do to. I wish framework included the key in their study as well. Ether way, no menu key == no buy from me.
I'm honestly kind of curious how you use it. In my experience, almost anything on the menu it opens has a common shortcut
And I might not be, hence my call for actual metrics.