I have a similar but slightly worse system with 5800x, 9070xt, ddr4 @3200mhz.
This seems to have fixed it about 75% for me but something I did notice is that in the graphics settings its still listed at 1.1.3 and not 1.1.3.1.
Also, my VRAM usage has gone up about 1gb since this mornings update. Which is find since im no where close to the limit.
Did you notice an increase in your VRAM usage, if thats something you pay attention to?
I'll add Ive only played a full round on Sobek City and half a round on Cairo since the update.
The winter offensive map was by far the worst stuttering for me and I have yet to play that map.