I'm running into a small issue in the canvas. When I start typing "AS" in the transformer search bar, I expect AttributeSplitter to pop up, but it doesn't show in the suggestions.

I'm running into a small issue in the canvas. When I start typing "AS" in the transformer search bar, I expect AttributeSplitter to pop up, but it doesn't show in the suggestions.

In the top right, the gear icon, you can change your sorting from ‘relevance’ to ‘alphabetically’.
That will also split out the readers, writers and hub transformers.
I do also think there's a bit of a bug with the shorthand transformer names. Its picking up ASPRS as its matching the first two characters of the format name
Sorted by relevance, yes, it will make a decision what you’re likely to want, and probably anything “rASter” related is going to have a higher priority. Or “ASprs”. In other words, it’s not prioritizing camel case.
There’s also an interesting scenario where you can get different results depending on how you’ve used it in the past. Because I’m using a relatively old computer, and have used FME on it for many years, there is a learning dictionary that tells quick add if I have different priorities.
For example, if I type FM into quick add, then the FeatureMerger appears at the top of my list.
Once you start typing AS, take the time to find AttributeSplitter and click it, then FME will start to learn your preferences. I know it’s a pain when you switch to a new computer, so saving this “learning dictionary” as part of a user profile is one of the things on our roadmap.