Do we need to import CPQ - fusion order management package in all environments

We had imported CPQ FOM 21B package in non prod site along with the ABO package as AbO package was a prerequisite as per the Oracle guide.

Now we are migrating to another environment, do we need to import these packages in the higher environments or simply migrating from one instance to another will be sufficient?

If these packages need to be imported again, can we reuse the 21B package?

Our sites have got upgraded to 24B.