In the toc, if a chapter/section/whatever titles breaks across lines,
the second line is not aligned with the first. The output in the main
text is ok. Example doc follows. I'll attach the output I get
with texinfo.tex [version 2023-07-02.10]. --thanks, karl.
\input texinfo
@contents
@node chap
@chapter Some very long chapter title with lots and lots and plenty of extra
words to see where it breaks
@node sec
@section A very long section title with lots and lots and plenty of extra words
to see where it breaks
@node subsec
@subsection A very long subsection title with lots and plenty of lots of extra
words to see where it breaks
@bye