Here's a YouTube video with a concept of a bridge which is currently under construction in Saint Petersburg. The bridge largest span is cable stayed and designed to drive traffic over the Neva river fairway.
The largest span rests on two pylons placed symmetrically such that they are inclined towards the fairway axis. Something like this:
This differs much from "usual" design where pylons are built upright. They may have "A" shape but still don't have inclination along the road axis.
The usual strategy of building cable stayed bridges is that you first build the pylons and temporary supports, then assemble the deck on those supports, then mount the cables, then remove the temporary supports. Maybe the pylons become evenly loaded once construction is complete but clearly building those inclined pylons of dozens tons of reinforced concrete poses a challenge - both the pylons and their foundations need to support the extra loads that appear simply because the pylons are inclined. Building an upright pylon looks much easier.
It looks like this design just asks for extra problems and doesn't provide any benefit compared to pylons built upright.
Why design a bridge with pylons inclined towards the river fairway instead of upright pylons?