I can’t re-post here while by-passing the strict anti-spam I’m facing.
In brief, I found two methods, the first one, I don’t know how to control the layout; while the second one allows me to control the layout, but I can’t apply it to bar charts.
The link was changed, it now points to plotly expres, there is no mention of pandas on the page.
But I would still be very interested in tutorial how to use pandas with Dash/Plotly for barcharts.