I couldn’t find a feature request that dealt with this but this has been bothering me during recent identifications. When putting in a genus with multiple sections and subsections, section seems to be the taxonomic rank listed first, and are searched off of their parent genus. When imputing a genus like Hypericum, Oenothera, or Euphorbia the autofill seems to be full of section level groupings, and its not until I have written the entire genus name that the genus moves to the top. It’s not a huge deal, but I have miss-clicked on section a number of times mistaking it for the genus I was intending to ID the observation to.
I don’t fully understand what rank is displayed first, but it seems like it ranks them somehow in a way that is not fully clear and I’m not sure if there’s some quirk to how section is displayed or if it is an intentional functionality. I personally prefer the display order from the main search bar, which seems to rank things from largest unit to smallest, but I can see some IDers not loving that method. Maybe the best answer is to not search sections and subsections off their parent genus.