Depending on when you tried that, it might’ve been fixed already.

I’m using GA on a Nest Mini, and Gemini on a smartphone. It started being unable to do pretty much anything; right now (Dec 2024) it can do all I ask it for, but still claims to be unable to fully replace GA.

Also have Samsung’s Bixby, which has better integration with phone apps, and returning search results, but fails more than Gemini at summarizing them, or answering general questions… so yeah, YMMV.