It's the same thing though, no? Whatever power it takes to run a query in dedicated hardware in a data center is the same or lower than the power to do it on a cell phone. On a cell phone it's even worse because charging the battery, then using battery power to run AI queries is less efficient than just powering a GPU to run several queries in parallel. That's without getting into other efficiencies of scale and the fact that a data center is designed to keep power usage low compared to an iPhone which is designed to be the worst consumer product someone will pay $1000 for.
It's so great. You can't even buy a new washing machine now without AI being crammed into it. I'm sure the next kettle I buy will also have AI, somehow
Linux phones have considerable problems unfortunately. The biggest being battery life, which is a problem with Linux in general. The other major hurdle is getting certain apps to work, banking apps being the biggest difficulty. If what you're really looking for is a phone that you have much more control over, I would suggest an alternative android-based OS. I was in a similar position as you, looking for a phone I could control and trust, and I ultimately landed with a Pixel phone with GrapheneOS, which I have been immensely happy with and it gave me pretty much everything I was looking for in a Linux phone. GrapheneOS is only developed for the Pixel series of phones though, so if you're looking at different models (or have a non-Pixel already), then you'll need a different OS. There's been some good threads about it on here if you search around.
The notification and email summaries are generally useful, but every once in a while it'll call an anniversary party email thread an "Annihilation party" or imply that there are six people at the door because it's grouping six separate notifications.