You are thinking of the nonce at the Ethereum account level, not the nonce used as the ECDSA signature level. This has nothing to do with Ethereum other than th

You are thinking of the nonce at the Ethereum account level, not the nonce used as the ECDSA signature level. This has nothing to do with Ethereum other than that Ethereum uses ECDSA signatures for security. Search for "ECDSA nonce" on Google and most of the articles and videos you will find will be explaining nonce reuse issues.