Slow motion in Macro mode on iPhone 13 Pro ???

According to this page on the Apple site (Take macro photos and videos with your iPhone camera – Apple Support (UK) macro mode is available while shooting slow motion on a number of phones, including the iPhone 13 Pro. I have not found this to be the case, despite playing around with the few possible settings that might apply.

Today I spent 15 minutes with Apple support who assured me the feature is in fact available. On their advice I even updated to 16.4.1. just now (usually I leave updates for a couple of weeks, just in case). The result is, as I expected, nothing has happened. Macro mode is still not a feature in slow motion shooting. (Wouldn't Apple have trumpeted this new macro feature in slow motion from the rooftops?)

I suspect this might be an error on the Apple document in question. But, just to be absolutely sure, I'm not missing something, am I?