
I used to be able to see Saturator presets when clicking on the arrow as shown here.
Now, if I explicitly add some presets to the collection, they will also show up under the device:

However, notice how they're also present as standalone presets below. If I were to manually add all presets to the collection, they would make the list overwhelming (and push VSTs way to the bottom).
On the other hand, VST presets show up as expected:

If this is how it works now it seems like an oversight to me.