If you’re going to be rude and arrogant, then the level of knowledge you exhibit has to match. SHA-256 decryption would be a front of the world achievement because it would be redefining foundational mathematics since it’s not an encryption algorithm. The words you’d be looking for are either a collision of SHA-256 or breaking encryption algorithms like AES, RSA, ECC etc.
sha-256 is used in the construction of certain encryption algorithms as a primitive but by itself never encrypts anything. If it did you’ve also got middleout compression invented since you could encrypt arbitrary length input into 256 bits of output.
Oh yes if RL breaks SHA-256 that'll be revolutionary - but definitely not that - some folks are for now investigating basic combinations of old school ciphers for now - security applications with RL are most likely for now related to automatically finding attack surfaces and creating defensive layers - I probably should have re-worded "decryption for RL" to just "security for RL" sorry!
sha-256 is used in the construction of certain encryption algorithms as a primitive but by itself never encrypts anything. If it did you’ve also got middleout compression invented since you could encrypt arbitrary length input into 256 bits of output.