Macos Big Sur 11.2.2 (20d80) ⟶

System slow after MacOS 11.2.2 update - Apple Support Communities

This was one of the early critical updates for the then-new M1 Apple Silicon Macs, which were particularly susceptible to the USB-C dock issue.

Occasional reports of UI sluggishness led experts to recommend running tools like EtreCheck to identify conflicting third-party software. macOS Big Sur 11.2.2 (20D80)

Unlike most Big Sur releases, version 11.2.2 was unusual because it contained (publicly listed security vulnerabilities). It was almost exclusively a hardware-safety patch.

Released on February 25, 2021, was a critical, highly focused update designed to protect Mac hardware from a physical "bricking" threat. ⚡ The "Bricking" Prevention System slow after MacOS 11

Note that macOS Big Sur reached its official end-of-life in November 2023 and no longer receives security updates. 🛠️ Common Issues & Troubleshooting

Some users found the update stuck and required a Safe Mode restart (holding Shift during boot) to complete. It was almost exclusively a hardware-safety patch

💡 If you are still running Big Sur on a machine that supports newer software, consider upgrading to a later version like macOS Monterey or Ventura to ensure you have the latest security protections. If you'd like, I can help you: Check if your Mac supports a newer version of macOS. Find troubleshooting steps for a specific Big Sur error. Identify safe USB-C docks that won't risk your hardware.