Demosceners are starting to, for sure.

https://www.pouet.net/prod.php?which=69642

Brigade Engine, for example: https://home.otoy.com/render/brigade/

Blender's path tracing engine, Cycles, supports realtime use in the editing viewport. Unless your machine is quite powerful, however, it doesn't render anywhere close to 30fps. Instead, it iteratively updates the viewport. It is fast enough that this is tolerable and useful for many workload+workstation combinations.

There is a nice Quake 2 demo showing various settings: https://youtu.be/x19sIltR0qU

But I think we are still some time away from real time noiseless path tracing. Although more clever denoising filters for the first samples are getting much better.

And ofcourse you can decide to use a very low number of bounces. This will give a darker inacurate result but still can give a feel of global illumonation.

People are definitely working toward it, at least.