I think the sentiment is better expressed as “Don’t rely on it for anything important, unless you know what you’re doing”
If you’re already an expert in your field, then you know enough to be able to identify errors and notice problems.
A layperson with no knowledge can’t make those differentiations, so shouldn’t use it for important tasks.
There’s a big difference between an oncologist using AI classification algorithms to detect breast cancer, and someone asking ChatGPT if a mushroom is safe.
I host a web server and gemini capsule on mine. I previously hosted a Minecraft server, but moved it over to my desktop recently.