I’ve installed 6.3.0-63.fc39.x86_64 kernel on my desktop and a laptop, so I’ll be looking into the results of this latest patch. After running for a few hours on my desktop machine, does not look like I have said spikes in CPU usage anymore, but it’s too soon to tell imo.
Laptop is a better indicator, as I have a FDE there, but it’s now in a separate thread