A script solution exists for it (independent to the 'Display Print Size at 100% Zoom' option)... but it makes the viewport jump momentarily:
```
if (app.documents.length > 0) {
var view = app.activeDocument.activeView;
var savedCenter = view.centerPoint;
app.executeMenuCommand('actualsize');
view.centerPoint = savedCenter;
}
```
So it remembers the viewport position, zooms using the native command, and restores the center.
This makes it work for any doc, CMYK or RGB (that is print or screen intent).
A simpler script,
```
app.documents[0].views[0].zoom = 1;
```
would work only with 'Display...' option enabled. I don’t know which state of it you use more.
If you hate the shifting, you can press Cmd/Ctrl + 1 once, run the script with:
```
alert(app.activeDocument.activeView.zoom);
```
remember the value and replace the "1" with it, that would fit your screen’s actual resolution. But in this case it would work for only one intent.
Testing these are simple if you drag a JSX file with the code inside into the app.

The main script would require a hotkey to run swiftly, and Ai doesn’t allow to set these up easily... the only readily available method is to install a script (by putting it into the dedicated Scripts folder) and create an action that calls it. Rather cumbersome.

A native option or a command would definitely be better!

A related request:
Previous/Next Artboard hotkeys should be able to keep zoom
https://illustrator.uservoice.com/forums/333657/suggestions/40944709

When working on product pages or other detailed designs, I often need to check how a specific area looks at 100% zoom on my monitor.

The current View > Actual Size (Ctrl + 1) command always moves the view to the center of the artboard. As a result, every time I use it, I have to manually navigate back to the area I was working on. This makes checking the actual display size unnecessarily inconvenient.

I would like Illustrator to provide either a preference that allows View > Actual Size (Ctrl + 1) to preserve the current viewport instead of jumping to the center of the artboard, or a separate command that changes the zoom level to 100% while keeping the current viewport so users can assign their own keyboard shortcut to it.

There are workarounds, but none of them are practical. Double-clicking the Zoom Tool changes the zoom to 100% while preserving the current viewport, but this action cannot be assigned to a keyboard shortcut within Illustrator. Setting the zoom level to 100% from the Navigator panel or the zoom percentage control at the bottom of the document window also preserves the viewport, but these actions cannot be assigned to a keyboard shortcut either. Recording these actions as an Action is not possible because Illustrator does not record them.

A third-party macro is also not a reliable solution. If I switch screen modes with the F key or hide and show panels with the Tab key, the UI layout changes, causing mouse position-based macros to become unreliable.

Having an official command or preference that changes the zoom level to 100% without changing the current viewport would make checking designs at their actual display size much faster and more convenient.

This is even more fun that this.
If you have something selected, typing in 100% in the Zoom Level field (which is the only one element in the bottom row to not have a tooltip, BTW) will result into re-centering the view to this selection — while double-clicking the Zoom tool icon does not move the view.
So we have THREE ways to change the view: to center to the selection, to center to the artboard, to no center to anything... but only one can be called with a hotkey (which a lot of user prefer).

We need all three as menu commands we can assign hotkeys to.