Just ran the test on a i7-4600U 4 core @ 2.1GHz, 256Gb SSD, SQL Server 2017 on Ubuntu 18.04.1 LTS
😎

T_TXT       ...

Here is a table example
😎

USE TEEST;
GO
SET NOCOUNT ON;

DECLARE @TXML XML = '<ns1:Order xmlns:ns1="http://company.com/licensing/neworder/v2">
<ns1:AccountInfo Name="NewCustomerName"...

Insert only is one thing, things change drastically once updates, deletes and reinserts are introduced, without the knowledge of the data life-cycle patterns, it's all guesswork.
😎

Thanks for the write up Evgeny!
😎
One thought on the test setup, the loop iteration and the execution overhead may skew the results.I've done similar tests...