Their phones are sold in the USA through Murena. I've bought a fairphone 4 through them. It was preloaded with eOS but I loaded calyxOS on it, which is similar to GrapheneOS.

https://murena.com/products/smartphones/

It also supports a lot of linux distributions, including UBPorts and postmarketOS.

I wish that they would just stick with one form factor and do the "framework computer" approach though.