I'm still playing FM21, but I think it's a combination of pressing traps and invite/prevent crosses.
So trap inside(?) and invite crosses to use a narrower width when defending.
Defensive Width has been replaced, too, with four new Instructions, all of which will help you better set up your defensive shape in different zones of the pitch. Outside of your own defensive third, you now have instructions to tell your team to set up a pressing trap out wide or in central areas, affecting the way your team positions and presses when defending – this can be used as an attempt to funnel the opposition into the area of your choice. Previously, Defensive Width was based around stopping or inviting crosses, but now they are stripped back and presented as their own instructions; you can set your players to be narrow and defend the cross, or ask your full-backs to stop the cross at the source.