One problem with Eldritch Knight, both in D&D 2014 and D&D 2024, is that they have to use a regular arcane focus. Their bonded weapon should be an arcane focus. Otherwise, you get item-in-hand shuffling silliness to use the arcane focus, e.g., holding two-handed weapon in one hand while using the arcane focus which is say hanging on a chain around your neck, then releasing the arcane focus to hold the weapon two-handed again on the same turn (seems potentially dodgy, as more than one free object interaction on a turn). Many groups will probably ignore this limitation, as it is silly in my opinion.