What's the best way to file share after resolving a Panic Attack?

1) leave your original user as-is until you have not gone digging for anything in there for more than a week, or longer if especially paranoid.

2) disk to disk copy does not take That long, but yes, it may take a while. If you have substantial FCP or similar libraries, do not move them, just change permissions to make them accessible to your new User.

3) ~/Library is a sub-directory off even user. [~] is a live shortcut that means "current user". That is where your email database and a lot of other databases are located. I am recommending not moving all, but only on an as needed basis.

Both the Mail database and the Mail files representing individual messages are stored in there. The messages will be fine. The database may be mucked up, and often intertwined with Contacts, Calendars and Messages.

Panic reports are stored here:

/Library/logs/DiagnosticReports

the appropriate ones are named with date&time and end in .panic

You can copy and paste that directory into Finder > Go Menu > Go to Folder ... to get there.

-OR-

You can download Etrecheck, change its preferences to "allow full disk access" and run its report. At the end, it includes a digest of all such issues in the last seven days:

Using EtreCheck - Apple Community

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That is no ordinary problem.

That is a wonky multi-processor NMI issue in 10.14.5 running firmware version 130.0.0.0

You should be on 132.0.0.0 for trouble-free operation. At this writing, that seems to come only from Beta 10.14.6.

There is a thread nearby with over 175 postings where this issue is beaten to death:

Kernel Panic after upgrading to 10.14.4 - Apple Community

There was a security update I saw go by today, perhaps that has the updated firmware, or it may mean the 10.14.6 release is imminent. Once you get the 132 version of the firmware, this problem will likely stop.

Copy over files in Desktop and Documents, but resist the temptation to transfer all files in Library, except on a case-by case basis when needed. The corruption is most likely to be in a database file in Library, simply because they are far more complex than other files.

IMPORT your old emails, rather than copying over the entire database structure.

Just post the report and lets see what the issue was.

In the reply window, just use the third icon from the right (like a sheet of paper with text), that shows a ToolTip of "additional text" when you hover over it.

First-line support agents are trained to listen and be extremely patient and nice to you. Their technical training may not be especially deep. Technical issue that persist are supposed to be escalated to a second-level technical specialist.

Second-level specialists are more knowledgeable, but may be far less patient.

And keep in mind, this was no ordinary problem.

10.4.6 has been released.

You should install it to fix your issues.