The Spark feature's UI isn't as good as the others.

For example, I'm not sure if it should prominently show recent workload, and unless I use MCP to manipulate files on my computer, local file manipulation isn't possible. Personally, I don't think it's going to be that useful.

Oh, I did not even know about it. Had to search for it:

https://gemini.google/overview/agent/spark/

Seems like it's still beta.