This happens In my install as well as in tryton demo 6.4:
When I call sales > reporting > by product, I get this result:
When I double click the 1st prduct in the list, I can see that is was sold 1st of Mar and Apr, so not within the from - to range, which indicates “today”.
When I change the “from” date to Jan 1st 2022, numbers do not change:
My naive understanding is that this feature should display numbers of products, sold in the period defined in the “from” and “to” boxes. What sense should these boxes make elsewise? So - is it my misunderstanding again - or a malfunction?