Not sure if anyone will see this since this community isn’t active, but I refuse to post on reddit.
It’s an ugly solution, yet so far the only one I’ve found that consistently works: Get a USB extension cord and plug the bolt receiver into that. Then place the receiver close to your keyboard.
I’ve tried all the USB ports. The USB extension cable is currently plugged into the last port that was causing stuttering. Sometimes it would be stutter free for a while, then come back again. Ever since I tried this method, I haven’t had a single issue, so it makes sense that it’s an interference issue.
Anecdotally I’ve heard of interference issues with Logi Bolt. Sounds like it’s based on Bluetooth LE 5. Have you tried to bluetooth connect without the receiver?
When I initially got the keyboard and it was having the stuttering issues, I gave the bluetooth option a try. It ended up giving me serious input delays, so I switched back to the bolt which was at least usable.
Since I had just gotten a newly released 7950X, I figured it might be a BIOS issue, but subsequent BIOS updates never solved it.