ContentGrid([]) doesn't change table format to grid

Hi - I want to place records from my table in Grid, im using V3 version of filament - in V2 adding

->contentGrid([
     'md' => 2,
      'xl' => 3,
]);

->contentGrid([
     'md' => 2,
      'xl' => 3,
]);

Was enought to put data in grid, but now my tables are still in normal row view (filament 3.0.3 laravel 10.2 livevire 3.0.0-beta.1)