The On submission section of the block settings decides what happens the moment someone votes. There are three options.
Visitors see a short message, such as Thanks for voting! Write your own message in the field below the option.
Visitors see the current results straight away, with the number and share of votes for each choice. This is the most engaging option, since people love to see how others answered.
You can also set Minimum votes to show results. Until the poll reaches that number of votes, voters see your message instead of the results. This avoids showing early results that look odd, such as one choice at 100% after the very first vote. Leave it at 0 to show results from the first vote.
Voters are sent to another page after they vote. Enter the address in Redirect URL. This works well for sending people to a thank you page, a related article or an offer.
Under Poll state messages, the Result order setting controls the order of the choices whenever results are shown: