columns() not having any effect

class MonthEnd extends Page implements HasForms, HasInfolists
{
    use InteractsWithInfolists, InteractsWithForms;

    public function prepWorkInfoList(Infolist $infolist): Infolist
    {
        return $infolist
            ->schema([
                SimpleListEntry::make('month_end_tasks')
                    ->label('')
                    ->itemIcon('heroicon-o-check')
                    ->listStyle('list')
                    ->itemLabel(fn ($record) => $record['title'])
            ])->columns(2);
    }
}