the malleability problem was a big obstacle for making an interactive protocol like LN
i'm pretty sure it's one of the major benefits (other than faster computation) of schnorr signatures
Discussion
https://medium.com/bitbees/what-the-heck-is-schnorr-52ef5dba289f
This concludes the ECDSA signing and verification algorithm. Even though the process is simple, there are few limitations of ECDSA like non-linearity, signature malleability, etc. These issues do not exist in the case of Schnorr signatures. Schnorr is inherently non-malleable and is linear, which opens up the door of a lot of cool new cryptographic tools in Bitcoin like MuSig, Adopter Signature, Cross-Input signature aggregation, etc. In the next section, we delve deep into the signing and verification algorithm of Schnorr signatures.