Very much so. And that's a good thing. Even when endeavouring to implement the composer's ideas and instructions as authentically as possible, pianists play differently. The interpretation is also very different. In the past, this seemed to have been much more common - perhaps also because not everything could be heard in the media for comparison. Welte did business with this difference and had the same pieces recorded by the most sought-after pianists of the time - and also presented their differences in advertising.
So it is not only the recordings of the same pieces by different pianists that differ, but also the same pieces by the same pianist if they were recorded at different times. This can be compared, for example, with popular pieces that pianists have recorded for different systems - examples of this are Liszt's Liebestraum and the Campagnella. From the point of view of interpretation, the recordings by the composers' direct pupils are particularly interesting, provided they did not record them themselves. For example, the recordings by Liszt's pupils.
