The 285k is not competing with the 9800X3D, a better comparison is the 9950X. The 9800X3D is bad value for most workloads, gaming is almost the only reason to get one. for multicore workloads, the 285/265/245 chips are not bad.
then intel need to stop calling it a gaming cpu, because in that case it is competing.
and in the home pc/general user market i would say it is 100% competing with a cpu that cost's £100 less and games/general task's better