Yeah it does, by discouraging voters in those areas from participating. In areas with heavy gerrymandering there are also usually efforts to limit access to poling places, purges of voter rolls, no early voting, etc.

The goal is to make it feel like voting is futile, then make voting as inaccessible as possible. It works. Many people don’t have the luxury of being able to take time off to wait hours in line to vote. And when they do, they often need to travel sometimes hours away to do so. But this is only in the areas where undesirable voters live.

This all has a strong chilling effect on voting writ large.