Trying to translate Crash log

Then, unfortunately, its looking more likely this was a User-instigated botched upgrade. Happens a lot. Given the current situation its difficult to see how it can be resolved quickly and easily unless user gives you their computer and you do the upgrade, properly.

Remember this is an upgrade and not an update. Two different things entirely.

Alternatively user follows Apple's upgrade guidelines here: How to upgrade to macOS Big Sur – Apple Support and has another go themselves.

Preferably using a wired connection rather than Wi-Fi. Better still I would advise a fully bootable back-up (clone using CarbonCopyCloner) first, followed by a wipe/format and clean install of macOS. That way you're starting from a clean slate with no crud & cruft that builds up over time lurking in the background waiting to fubar the computer. If it goes badly (as it has done in this case) the user can revert back to a known good working state using the clone. If user did not do a back-up prior to upgrading (as he/she should have done) then its going to take longer. If doing a format/clean install then from there re-install/re-download (not copied over) clean copies of software user needs and re-instate from scratch email and any other accounts etc the user needs for their work.

Again these are all things best handled (in general) by the IT department. Did you confirm if this was a company owned computer or one owned by the user?

Good luck

It’s hard to see it being RAM related if it’s only crashing when accessing websites, corporate or otherwise? Presumably the user is using Safari when this happens? Have you suggested he/she try using other browsers? Or at least the same browser that everyone else is using.

I could be wrong but this may be related to your network’s security requirements? The crash log shows repeated calls to the Kerberos framework. Presumably this is an SSO (Single Sign On) environment, probably Active Directory, with a somewhat restrictive proxy in place? Does the problem disappear when on the wireless network or does it only happen on the wired one? Is this the only Mac on the network or is it the only one affected? If the only one how are the others different? EG: same spec, different OS etc. Have you installed all the corporate network‘s certificates? Is the user authenticating with their assigned network user ID properly or is he/she confused about which ID they should be using? Is this a new Mac with Big Sur pre-installed or a recent upgrade from a previous OS? Is this the User’s own machine or one belonging to the enterprise? Apologies for all the questions but some answers are needed before we can help you narrow it down to something more specific.

Is it only Chrome that's crashing or any other browser as well?