Yes it has, there's been some sort of issue. I've just moved into a new house (last night) and will spend the weekend unpacking and also trying to figure this out. I've done a few quick resets of the instance, and that helps but the issue I think is that we keep randomly falling behind federation which stresses the CPU as it catches up to tens-to-hundreds of thousands of missed activities.

https://grafana.lem.rocks/d/edf3gjrxxnocgd/federation-health-activities-behind?orgId=1&var-instance=All&var-remote_instance=quokk.au&var-remote_software=All&from=now-30d&to=now

I apologise for the issues and hope to get it resolved as soon as possible.