Isn't the Snapdragon X Elite pretty much the only part that would fit the bill? Framework might not even be able to get those, Qualcomm generally won't even give you the time of day unless you commit to buying a bazillion units.
Yes but Framework doesn't have to and probably doesn't want to. Snapdragon laptops often ship with very few user serviceable parts including RAM which would be tough for the Framework mold IMO even if they got something working with LPCAMM (though that's likely an inevitability). But Qualcomm making a Framework compatible board in part as development kits would likely be beneficial for both.
Arm laptops are plenty competitive with the x86 space with the snapdragons now.
RISC-V chips tend to be slower, but architecture-wise there's not much an ARM chip can do that a RISC-V one can't. Both are pretty well-supported for the coding/web browsing use case laptops get employed for.