Well, I meant “taproot version of segwit”. These 0-based numerations are driving me crazy.
If you carefully read BIP-341 you will see that you can use taproot segwit version (whatever it is, 1 or 2, I do not remember) with a different length of payload which should be not 256 bits, and it can be a future taproot version.
But you have 256 bits, meaning you can’t go that route.