/dev/fd0 on Nostr: Size of signed PSBT for this transaction: Without non-witness UTXO: 216 bytes With ...

Size of signed PSBT for this transaction:

Without non-witness UTXO: 216 bytes
With non-witness UTXO: 64902 bytes

What if someone creates a 200 MB PSBT? Will it break anything?

quoting
nevent1q…z8ft

https://github.com/bitcoin/bips/blob/master/bip-0174.mediawiki#cite_note-7