As RVA22 is not done (although almost there), we can't know whether it's compliant, but we will once it is. Expectation is yes.
Otherwise, most stuff out there will be RVA20 compliant once that's ratified, as that reflects what was already common back in chips designed in 2020, what most have been calling RV64GC.
The cores are SiFive U74-MC, the version is, I believe, 21G1.
These are documented.
But that design is configurable. We know B extension (optional) is enabled. I have no idea about every other setting this core can be synthesized with.
As RVA22 is not done (although almost there), we can't know whether it's compliant, but we will once it is. Expectation is yes.
Otherwise, most stuff out there will be RVA20 compliant once that's ratified, as that reflects what was already common back in chips designed in 2020, what most have been calling RV64GC.