Just upgraded to version 25.11 (from 25.7) and now the TaskBar Widget includes additional text showing Y-axis scale values and horizontal y-axis scale lines as well as the realtime up & down speeds. I cannot seem to find any options to disable this new feature.
I would also be in favour of an option of Widget graph without any text numbers at all, as suggested at the top of the thread.
The graph part is what I want to see but narrowing the width of the widget shrinks the graph part first. Shrinking the font size down to 1 pt minimises the text parts but this has the side effect of now drawing many horizontal y-axis scale lines, not the clean graph I have become used to over the years.
(I use the Histogram graph, Windows 11)