in follow-up to thread 85203:
With a fully implemented Neutrino (BIP 157/8) in Bitcoin, would it enable one to operate a MINING Node without having to use/store the entire gigabytes of blockchain files?
No, it would not. A node that uses BIP 157/158 is not a full node. It is not downloading every single block and making sure that all blocks and transactions are valid, thus it is not a full node.
You can already run a full node without storing the entire blockchain. For a very long time now, Bitcoin Core has supported pruning where it discards old blocks after it has validated them. Pruned nodes are still full nodes as they still have downloaded and verified every block and transaction, they just don't store all of history. Pruned nodes can be used for mining.