> Doesn't GrapheneOS supports only Google Pixel smartphones now?

For good reasons. Most other devices arent secure enough to guarantee privacy. Especially not if loaded with a custom operating system (most devices don't allow to verify the boot chain with a custom OS)

> And if we're talking about common people (especially not in US), it's not even everyone who can afford that.

You can get a new Pixel 9a here in europe for around 350€ and it will be supported at least until April 2032

> Moreover, in my opinion, by buying Google phones you're feeding Google, and I, personally, would like to avoid that.

Google phones are surprisingly open and work well. Google takes a pro-user stance here that is extremely rare in the ecosystem, so why not support this product?

It's alright, whatever the reasons might be, but let's not pretend there are no other ways out. I'm content with newest LineageOS on my 7 year old mid-range Xiaomi. I don't mind the loss of privacy guarantee. I don't have to spend any extra 350 euros and lose the headphone jack in the process.

So to avoid google's android I buy google phone to not run android?

> Google phones are surprisingly open and work well. Google takes a pro-user stance here that is extremely rare in the ecosystem, so why not support this product?

Because they will pull the rug here one day too. Why on earth should we trust them to keep this approach to their hardware?