I would expect no benefit to higher sample rates, but it will take up CPU resources that are better spent elsewhere. The internal representation is (I think) 32-bit regardless. Not sure if that’s different for the 64-bit version.
If you’re releasing onto a cd, I think most streaming will accept higher sample & bitrates, I know bandcamp does. Right now I render tracks to 48000Hz, 32 bit depth though actual used samples can be lower in quality. Have yet to create something in which all the source sounds are of the same quality as the output quality.