LaTeX.org

The base installation is TeX Live [2023]
As mentioned earlier
C:\>Latex -version
pdfTeX 3.141592653-2.6-1.40.25 (TeX Live 2023)
kpathsea version 6.3.5
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Primary author of pdfTeX: Han The Thanh (pdfTeX) et al.
Compiled with libpng 1.6.39; using libpng 1.6.39
Compiled with zlib 1.2.13 ...

Hi Stefan,
Probably just an assumption then.
Attached is the README and a html file from the distro that may cast some light on the topic. Original HTML file "LaTeX file info" converted to pdf forma

Newbie:
I have installed a TeX package from CTAN
[b]Tex -v[/b]
TeX 3.141592653 (TeX Live 2023)
kpathsea version 6.3.5
Copyright 2023 D.E. Knuth.
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[b]Texdoc -V[/b]
Texdoc 4.0.1 (2023-02-27 )
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[b]latex -v[/b]
returns ==>
pdfTeX 3.141592653-2.6-1.40.25 (TeX Live 2023 ...