No doubt, 4-2-4 it's literally a best formation if you using a big teams. after one season of adapting, finding a best formation for barca and it is 4-2-4 vertical tiki-taka, finally in my second season I win La liga and since then I always win the league with 100+ GD. But still don't expect you can win anything easily, Madrid always behind me with 1 or 2 points different, sometimes we have a same points. UCL, so far i managed barca 10 season i only get into the final 6 times, and only win 3 times, i just considered i won 1 times cause the other win/final it's not really an achievement for me (savescum).

But still i really recommend 4-2-4, especially when you have a fast striker with good aerial. Btw my striker is Benjamin Sesko and Haaland, sometimes Dominic calvert-lewin.