The popular vote count is a measure of the level of support for the candidate.
The electoral vote count is, unfortunately, how we determine who gets the office, and that's literally it. It just tells us who did better at influencing voters in a handful of states that actually matter in the idiotic electoral college system, putting the result of the election into the hands of a small minority of voters. That says nothing about the overall support a candidate has.
In the end, Trump had the support of 1.5% more actual voters than Harris did. It wasn't a blowout, he has no mandate. And we really have no idea what would have happened if our system was based on the popular vote. If candidates had to campaign in every state, to get every voter out that they can to support them, the final results would probably not look the same as what we go.