RDR 2 doesn't have any bugs other than what are GPU driver related, If I where you I'd not worry about it, just keep on updating drivers/ properly and gameplay ought to become better.
(kind of obvious because RDR2 on the pc never requires any updates)
Over the years since RDR2 released and over the countless iterations of drivers I played with, there is always something else texture related to be observed playing RDR 2 on the pc, then on the other hand I've also seen an entire clean and texture bug free playthrough I believe.
(don't Alt+Tab whilst playing, don't change settings mid game, and play on the same driver entire playthrough)
Use the completionist save compilation and follow the story from any chapter, always results in the best time played, well sometimes going vanilla from start to epilogue end still beats the other options for satisfaction.