Migration of files of one user from one NC server to another?

[Holger_Beetz]

OK, I can reply a bit to myself I guess

There is a tutorial essentially describing what I need to do:

Tutorial: How to migrate mass data to a new NextCloud server

This easy to follow tutorial will show the best practice to migrate mass data, say from an existing NAS (network drive) to a new NextCloud server, effectively and efficiently without wasting upload transfer time which may be a very lengthy process, save power and resources and get up to speed with client synchronization. Audience This tutorial is intended for everyone (beginner to advanced user) User Case You have an existing drive with over 1TB of data that you wish to migrate to your new N…