as a complement to their main style. All styles should complement their basic methods with hard work and elements of pressing. I'm not saying you're suggesting man city style is gegenpressing because it's 100% clearly not that at all
There should be more of a distinction between gegenpressing and pressing/hard work. For sure elements of it are more organised these days but there's always been pressing/hard work/closing down by teams...including possession teams who press/press high to win the ball back...but that doesn't mean it's their predominant style. Teams press high/mid/low as well sometimes with working hard/closing down. It's always been a feature of football and it always will be. Didn't Ian Rush press from the front in those Liverpool teams/saachi's Milan...heck even Jack Charlton's Ireland lol .
With klopp over the years his predominant style has been gegenpressing...you can see how in interviews how often he emphasises how good liverpool's counter press is...as that's what he wants...his comment "No playmaker in the world can be as good as a good counter-pressing situation" sums his view up but of course guardiola's body of work has proved otherwise and that klopp is incorrect in that assertion.
as @whatsupdochas pointed out gegenpressing is absolutely not the most successful tactic these days. Sure, teams utilise pressing but it's usually complementing their overall style.
One of the reasons why gegenpressing works so well in FM is pass decision making still isn't simulated as well as it could be and therefore elements of intelligent pass choice and creativity to unpick passing traps just aren't there. That's also one of the main reasons why Guardiola tactics within FM just don't do what they do in the real world. Teams just cannot pass & move and operate in tight spaces in FM as well as their skilled counterparts in the real world can. It's the area that requires most work in the match engine as only at that point where pass decision making is simulated as well as it can be then defensive elements can actually be simulated as well as they need to be to counter this.
Until then we will continue to see the difficulty in balancing the engine as efforts to implement pressing/very solid defensive methods will just shut down good play too easily as it wasn't simulated well enough in the first place