If 5G signal is indeed being used to trigger the mRNA OS inside compromised people, it will most likely be using lower end 5G frequencies (450MHz-6GHz), as those have better material penetration and range, not to mention the trigger sequence won't be too long, probably around ~1kB.

If we do figure out what the band and unique triggering packet is, we could build a dedicated, low cost wearable jammer that generates noise on that specific frequency band when it detects the first 20 bytes of the trigger signal. This could be mass manufactured and distributed, even better, it could be programmed as an app on people's phones if they have 5G capability.