I came across the new set of Linux benchmarks for the 2400G on Phoronix:
https://www.phoronix.com/scan.php?page=article&item=ryzen-2400g-may&num=1
In summary, the 2400G is working quite well under kernel 4.17 but the 2200G is still experiencing issues. I haven’t seen anything about the mobile Raven Ridge Linux stability, but I’d imagine it could still be hit and miss under 4.17. If I was looking for something Raven Ridge besides the 2400G for Linux, I would try to hunt down what experience others have had, or wait until they get everything sorted.
I had been looking around for a while and not seen anything substantive since immediately after these APU’s were released. Having just bought a 2400G I was happy to see the benchmarks. It’s probably going to be a while until I do my build, but I plan on going over it thoroughly (mostly for low power performance) and sharing my results for those interested.