If I understand your reply correctly then… No.
100% is the actual document size in pixels. That may be larger (or smaller)
than the computer screen size, especially on a laptop. In photoshop,
Command 0 fill the screen entirely, no less and no more. That may be 87%
and it may be 142%.
Thanks nevertheless.
We probably won’t change the keyboard shortcut for a 100% zoom, but if we add arbitrary zoom factors we’d do a different keyboard shortcut for fit to window.