https://wccftech.com/rdr2-vr-mod-highly-unlikely-due-to-lacking-horsepower-says-modder/

RDR2 VR may remain a dream on PC, even with the dedicated modding community of Rockstar fans. That's what Luke Ross, creator of the Grand Theft Auto V VR R.E.A.L. mod, wrote in a Reddit post a few days ago.

According to him, an RDR2 VR mod won't be possible any time soon simply due to the lack of the necessary horsepower on PC, at least for the time being.