Let's try something different - check out your current windows power profile and make sure nothing stupid has happened in here - there were several windows updates that royally screwed up windows power management profiles for ryzen processors and I ocasionally find myself reapplying my custom setting here because of it.
You can try adjusting the processor performance minimum processor state to 80% or 85% if it's lower than that. This should keep the processor from going into the lower end of its "spread spectrum" or whatever you want to call it. This will sometimes reduce micro stutter.
There are probably a few other things you can get rid of like windows game bar, etc. I would suggest closing anything you're not using basically.
I get micro stuttering very occasionally it's due to the storage media I'm using and poor programming.
I see you have an X variant, I don't know how overclocking works on those motherboards but you're often better off trying for an extended frequency range with precision boost overdrive /xfr, than trying to hold a constantly high clock. I find a ryzen system is more stable if it's allowed to breath rather than NOP through clock cycles.
Another weird condition might exist with regard to USB traffic. Some USB will be off the processor and the other will be off the chipset - you might try taking a look at this and moving less frequently used things onto the chipset plugs.
You'll really want to plug headphone USB dongles into the chipset and then test them off the processor USB ports, they may be polling in a strange way and may need more or less latency.
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