Very sorry about this. There should be a paclet update soon to resolve this issue on Linux (WL v13.3).
In the meantime, you could try renaming the underlying Examples library:
e.g.:
mv ~/Wolfram/Mathematica/13.3/SystemFiles/Links/GPUTools/LibraryResources/Linux-x86-64/Examples_12.so ~/Wolfram/Mathematica/13.3/SystemFiles/Links/GPUTools/LibraryResources/Linux
-x86-64/libExamples_12.so
restart WL and retry:
Needs["CUDALink`"]
CUDAQ[]
CUDAMap[Cos, 1.*Range[10]]
Also, you mention CUDADot not giving the correct result, could you please provide an example.