IANAL, but to my understanding, SCOTUS is defined by the constitution and given certain powers and protections, to interpret the constitution, mediate disputes between the political branches, and certain duties given to its chief Justice. Congress is given broad powers to set the laws, which includes details of how branches are run, like creating departments in the Executive, and setting the number of Justices on SCOTUS.
If I understand Jurisdiction Stripping correctly, it’s not preventing SCOTUS from eventually reviewing the case, but a law that says they don’t get the first review of legal challenges. It could slow the process, at the very least.