Is Google Tensor a secure SoC?

I want to move to GrapheneOS, for obvious reasons, but the fact that it is using a Google SoC, makes it a bit difficult for me. Also, lack of SD slot, not that great battery life, 256GB are not enough, too expensive for what it offers, etc., but at the same time there is no real alternative to GrapheneOS, so I have to go for it. I also do not see Pixel 5 as an alternative, as it suffers from …

google privacy soc tensor