Chipset drivers refuse to install. Says “feature I’m trying to use is on a network location that is unavailable.” Not really an issue since the chipset drivers are the same as before but it’s a pretty nonsensical error.
Update to this: if anyone else is experiencing the Helldivers 2 crash I described on these drivers, try adding --use-d3d11 to your Steam launch arguments. I was able to get through an entire op without a single crash for the first time, and my FPS might have been slightly higher than it was on the original drivers, as well. As for the power issue… still present, and the workaround seems to be “restart the laptop”. I honestly wish the MUX had a manual toggle in the BIOS. I’d rather do that and have complete control over it than relying on AMD SmartAccess to work properly.