shoutout to the BRC-20 degens still testing in production (the destination for this inscription is an unknown segwit address type with no defined spending rules)

segwit addresses are defined by a version and a witness program. legacy segwit addresses are version 0, with either a 20 byte witness program for P2WPKH, or 32 bytes for P2WSH. taproot uses version 1, always with a 32 byte witness program.

this output is version 1, but has a 20 byte witness program, which doesn't match any defined segwit type. that means it can be spent by anyone under current consensus rules (to allow for future soft forks). but doing is non-standard and wouldn't be relayed by most nodes.

the transaction author probably meant to send this BRC-20 inscription to a legacy segwit P2WPKH address instead. and sure enough, if we change the output script to version 0, we get a valid address with an extensive history of BRC-20 activity.