Quick Note thumbnail not appearing (and other Quick Note features not working)

On Apple's list of of Monterey features, as well as every Monterey feature article and video I've seen, it's claimed that you can

Add links from an app to your Quick Note to create context. When you return to the same place in the app or website, a thumbnail of the Quick Note appears in the corner to remind you of what you noted earlier.

I've been trying and trying to make this work, and I have never once witnessed a Quick Note thumbnail appearing.

On top of that, the persistent highlights on Safari websites only actually show up if the Notes app is already open, which is pretty stupid. And on top of that, even if Notes is already open, it still seems to just not work sometimes at random.

Finally, the following two features Apple touts…

Available everywhere

Access Quick Note from anywhere in the system. You can be using any app or in full screen or Split View.

Adaptable

Adjust the size or position of a Quick Note.

…just seem completely pointless. Yes, you can open a Quick Note in full screen, but it doesn't open over the full screen app, as implied. It just opens a new Notes window in an available desktop space. So no **** you can adjust the size or position of a Quick Note, it's just a regular Notes window, like any other. Why wouldn't you be able to? In fact, the only difference I can tell between a Quick Note window and any other Notes window is that it doesn't appear in Mission Control or App Exposé. Which again, is dumb.

Am I the only one these things seem to be broken for? Apple doesn't note any particular system requirements for things like the thumbnails. This seems like the most broken-*** half-baked neglected feature I've ever seen touted in a new OS, unless it's just bugging out for me.