This works for me, however, instead of looking for the device `TPPS/2 Elan Trackpoint`, I had to use the id of `TrackPoint Keyboard 2`. The downside of this fix is that pasting with the middle button does not work anymore.
D. Schlör, J. Pfister, und A. Hotho. 2023 the 7th International Conference on Medical and Health Informatics (ICMHI), Seite 136–141. New York, NY, USA, Association for Computing Machinery, (2023)