One UI 7- App Drawer

[ScamsungUser]

One UI 7 brings back vertical scroll in app drawer for samsung devices 

If you prefer the previous per-page style you can change to it also.

Also they have moved the search bar and the three-dot menu to the bottom of the screen.

[SriLankanSachee]

I like the paged layout more, that gives you the freedom to place your apps anywhere that you need.

[ScamsungUser]

You can change back to it by tapping three dots menu in bottom and select custom layout.

[SriLankanSachee]

Plus the search bar in the more reachable place would be a nice thing to have. with current layout I sometimes ignore using it as just because of the reachability issue