A perspective rendering would be applied at the output of the graphic stream. It‘s comparable to DLSS rendering.
It is not particularly complicated, as long as the hardware resources are sufficient.
In DLSS rendering, the core graphic engine first renders the picture with all effects etc. for a smaller screen resolution than the actual screen resolution for each frame. That will then be extrapolated to the actual screen size.
Now with a projection rendering, instead the picture with all effects etc. needs to be rendered with a LARGER screen resolution than the actual screen resolution. Then the computation is done for each frame to render the new projection.
It‘s not rocket science, and today‘s graphic cards have more than sufficient power to handle the overhead needed for this,
It would make a decisive difference.
Like DLSS it could be offered as an option, so those on older hardware do not suffer performance losses.
But Asobo do not seem to be reasonable about such things. Don‘t know how they tick. We hardly get feedback about how they see this, or if they see the huge problem at all.
Only acting based by vote numbers is not the best solution. Like in democracy, if you only go by the votes of the masses, you end up with tyranny of the masses. 