just to reiterate on this... all the instructions have positives and negatives and there are no right or wrong answers here. it comes down to how you want to play, what players you have, what they are good/bad at and who is on the opposite end.
that being said, I didn't mean wide midfielders as a role but as a position. currently, i use Ws and WPs. it just ensures they are more inclined to track deep when on support.
Step-out is fine if you want to reduce time and space for the opposition, it usually works well with a higher d line and generally more aggressive defensive approach. on the downside, they need to be fast with a gk with good 1v1 as this strategy is prone to balls into space.
regarding trap inside - it is better when you have more central midfielders than the opposition and the backline/gk that isn't good with dealing with crosses into the box. otherwise, it is usually better to protect the centre and allow the opponent to dominate the flanks.