Harris significantly outspending Trump on television, digital ads

Yes, you are correct. According to data from various sources, Kamala Harris’s campaign has been spending more than Donald Trump’s on both television and digital advertising.
Since this is often viewed as a key component in winning an election, it is monitored closely by political analysts and strategists.

Do note that spending more money on advertisements does not necessarily indicate a higher level of voter support or a guaranteed win. There are numerous other factors that contribute to the success of a political campaign.