I am put in mind of this.

commit cd6c3bacfd7c2bacafe4fa55e56c57983dc43d64
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
Date:   Tue Nov 29 09:08:39 2022 -0600

    NEWS: Add item regarding tbl and line numbering.

    $ cat ~/tmp/line-numbered-table.roff
    .nm 1
    Here is a line of output.
    Sic transit adispicing meatballs.
    Let's pad it out with more content to ensure the line breaks.
    .TS
    L.
    This is my table.
    There are many like it but this one is mine.
    T{
    My table is my best exhibit;
    I will guard it as I guard my life.
    Even as it requires multiple output lines for an entry.
    T}
    .TE
    What is the line number now?

    I defy anyone to defend this:

    Unix Version 7 on a SIMH PDP-11/45 (and Heirloom Doctools troff today):

      1 Here is a line of  output.   Sic  transit  adispicing  meatballs.
      2 Let's pad it out with more content to ensure the line breaks.
      6 This is my table.
      7 There are many like it but this one is mine.
      8
      9   3 My table is my best exhibit; I will guard it
     10   4 as  I  guard  my  life.  Even as it requires
     11   5 multiple output lines for an entry.
     12 What is the line number now?