Bit confused with this. Electrum only has a 12 word seed. The nano ledger s has a 24 word seed. So wouldn't just having half of the nano ledger seed which is 12 word seed essentially the same thing as having no word in an electrum seed?
That is essentially correct.
In both instances, you still need to bruteforce 12 words to get the actual seed phrase... So, you're working with a 2028^12 search space... which is 5444517870735015415413993718908291383296.