Migration from Mac Pro Mid 2010 to Mac Studio

I try to move Lightroom Classic from my old Mac Pro 2010 (LRC 10.4 installed, latest version possible, since MacOS Majave is latest OS that runs on the old Mac Pro) to a new Mac Studio ((LRC 12.1 is installed / Ventura 13).

When looking at the lightroom folder on my Mac Pro which contains the LRC catalog I find following files 

- Lightroom Catalog.lrcat

- Lightroom Catalog Previews.lrdata

- Lightroom Catalog Smart Previews.lrdata

- Lightroom Catalog Helper.lrdata 

When I look in the default lightroom folder (one picture uploaded and modified as a test) I find one extra file

- Lightroom Catalog.lrcat-data

A search on all attached disks to the Mac Pro did not result in locating this file. It simply does not exist.

An internet survey pointed out that this file is essential and contains all my modification, keywords, etc. and was introduced with LRC 11. How should I proceed? 

Will LRC 12.1 recognize the older LRC10.4 files and convert them to the newer file formats and build a lrcat-data file based on the info that is info the older folders? 

Or should I look for other workarounds?

Any advice is greatly appreciated.