Yeah, and regulations across different countries has to be even more difficult. IIRC in the US, the baseband has to be proprietary, but I could be wrong on that. Are you planning on releasing the schematics and gerbers for it, and/or are you planning on selling it commercially a la the Pinephone?
I'm just looking forward to a fully functional mainline phone in general. Having it be RISC-V as well would just be a cherry on top.