Among your work sheets, you will have a "Qualified Dividends and Capital Gains Worksheet"* (abbreviated "Qual Div/Cap Gn" on the forms list) showing the tax calculation.
In particular, note lines 9 (the amount of LTCG taxed at 0%) and line 18 (the amount taxed at 15%).
https://media.hrblock.com/media/KnowledgeDevelopment/ITC/2023Forms/2022_Qualified_Dividends_and_Capi...
*For more complicated returns you will get the "Schedule D Tax Worksheet" (abbreviated "Schedule D Tax").
