^^^ Agreed! (And shorter and simpler to read than my blathering.)
If the OP was entertaining the idea to release something ONLY in a reduced format like CD intentionally, hopefully the above will help (either in making that decision or rethinking it).
You can absolutely archive a 32 bit fp render of your master for posterity.
But at least save a 24 bit original sample rate copy. And any reduced format versions can be produced from the 24 bit master with genuinely no loss.
If another mastering engineer can make a better 24/96 master from your final 32 bit fp copy, great!
Would be a moot point for any reduced format versions IMHO.