There is more grouping in the finishing times in the team time trial than in the individual time trial. Now consider the situation where there are no rules against drafting (free-riding). Battling the wind makes it an optimal strategy. Again it is worth looking at the outcome data and comparing stages. Stage 1 above was the team time trial. Stage 2 was a regular stage. It was a relatively flat stage. Below is a bar chart indicating the time gaps behind the winner in Stage 2. Almost 140 riders got the same time as the stage winner.
What made the 2022 version of La Vuelta different from the Tour de France and the Giro D'Italia is the inclusion of the individual time trial.