I am running Catalina 10.15.7 on a 15" MBP 2017. Same issue here with "accountsd". CPU between 300 - 500
What I recognize is, serious issues with Spotlight seems one of the bugs. It does not run well.
I signed out of the Apple ID. Rebooted the mac and it seems fine. As soon as I logged in to my apple id again, the accountsd startet to work again on 300 - 500% CPU.
Following steps have been done:
- Did Onyx (optimizing) twice, no changes. Including building new Spotlight-Index.
- Removed all mail / calendar accounts (which I am not using anyways since we're using outlook in the company)
- Installed the 10.15.7 Combo Update - No changes
- Removing / Disable iCloud Keychain; No changes
I have no clue how to fix that issue. I desperately need my MBP to work properly. Does someone have an advice for me that may helps? I am not an IT engineer. That's why I am using Mac since almost 15 years. C'mon apple, wtf is wrong with you?! fix that bug!