Wonder how it compares to DIY with graphine?

I'm very wary.

Security focused phones have been very hard to bring to market and support well.

The slick marketing and spec sheet looks great but no one has been able to really test them yet. (As far as I have been able to find so far)

An unlocked Google Pixel running Graphene (or grinding your way through the learning curve with a Librem5 and accepting it's shortcomings) is still the direction I would go before jumping into this phone.

That is, however, just my 2 cents. (Factored for inflation)