Macbook keeps crashing (mostly in sleep mode) shortly after Big Sur update

The #1 glaring issue is the panic report. Without "Full Drive Access" enabled for EtreCheck we can't see all the relative information about this panic that will prove helpful.

You have two options:

1. Enable "Full Drive Access" for EtreCheck, and then, run another report and post it.
2. Alternatively, if you rather not do that, your Mac stores panic reports in the /Library/Logs/DiagnosticReports folder. A kernel panic reports would start with "kernel panic," and end with .panic. You can then paste that into the Additional Text tool.

Yes, this was helpful.

A few things to try:

1. If you have anything attached to your notebook, remove them. See if the panics continue. If you don't have anything attached, go to the next step.
2. Boot up your Mac in Safe Mode. Run in this mode for awhile to see if the panics continue.

The area in the report that stands out is:

last started kext at 66300919644918: >!UAudio 405.39 (addr 0xffffff7fa9ba6000, size 315392)

last stopped kext at 47600360141537: >!UAudio 405.39 (addr 0xffffff7fa9ba6000, size 315392)

loaded kexts:

>!AUpstreamUserClient 3.6.8

>AudioAUUC 1.70

>!APlatformEnabler 2.7.0d0

>AGPM 122.1

Kernel panics are almost always hardware or device driver related. "Bad behaving" apps, would tend to show up as app crashes in the logs ... os I don't think a web browser extension would be the cause here.

Removing any external devices and running in Safe Mode should help narrow down what to look for. The panic log entries I highlighted only represent that last loaded driver and some of the other third-party extension that are running on your Mac. These also tend to indicate the most likely areas to investigate.

We need information in order to help.

Please run Etrecheck and post its full report here.

Use the “additional text” button and paste the report into the text box.