Yes, it's okay.
Yes, it's okay.
You've got a solid overclock on your Ryzen 5 2600, reaching 84°C during a short AIDA64 test. It's normal for temperatures to spike temporarily under stress, but 84°C is quite high for sustained use. Consider checking your cooling solution—maybe upgrading the cooler or fan could help. If you're okay with it, you can try lowering the clock speed until you find a more stable balance between performance and heat.
It seems like you're wondering about the processor's behavior when it's idle. Most people don't expect the CPU to run at full capacity all the time, especially if you're mainly playing games and watching videos. Regarding downclocking, it's not exclusive to laptops—many desktop systems can adjust clock speeds based on workload.
I entered 1.375 because lowering it appeared to prevent booting, which seems reasonable.
You can verify the real voltage by checking the hardware monitors for accurate readings. Relying only on them might not be enough.