Custom action in resource page only works when in getHeaderActions([])

I have a resource page where I have created a couple of custom actions. The buttons appear but when I click nothing happens.

The only way they work is when I add my custom actions to the getHeaderActions([]) but obviously that duplicate the actions as well as it renders my custom actions in the header but that is not what I want.

namespace App\Filament\Play\Resources\GameResource\Pages;

use App\Filament\Play\Resources\GameResource;
use App\Models\Game;
use Filament\Actions\Action;
use Filament\Actions\StaticAction;
use Filament\Forms\Components\TextInput;
use Filament\Infolists\Components\TextEntry\TextEntrySize;
use Filament\Resources\Concerns\Translatable;
use Filament\Resources\Pages\Page;
use Filament\Support\Enums\FontFamily;
use Filament\Support\Enums\IconPosition;
use Illuminate\Contracts\Support\Htmlable;
use Illuminate\Database\Eloquent\Collection;
use LaravelIdea\Helper\App\Models\_IH_Game_C;

class GameList extends Page
{
    use Translatable;

    protected static string $resource = GameResource::class;

    protected static string $view = 'filament.play.resources.game.pages.list';


    protected function getHeaderActions(): array
    {
        return [
//            $this->newGameAction(),
//            $this->joinGameAction(),
        ];
    }


    public function newGameAction()
    {
        $identifier = \App\Models\GameSession::generateIdentifier();

        return Action::make('new')
            ->label('New game')
            ->translateLabel()
            ->slideOver()
            ->modalSubmitActionLabel('Start')
            ->infolist([
                \Filament\Infolists\Components\TextEntry::make('Session identifier')
                    ->translateLabel()
                    ->copyable()
                    ->copyMessage('Copied!')
                    ->icon('heroicon-m-share')
                    ->iconPosition(IconPosition::After)
                    ->size(TextEntrySize::Large)
                    ->copyMessageDuration(1500)
                    ->helperText('Share this code with your friends to join the game.')
                    ->fontFamily(FontFamily::Mono)
                    ->state(
                        [
                            'identifier' => $identifier,
                        ]
                    ),
            ])
            ->action(function (\App\Actions\NewGameAction $newGameAction, $arguments) use ($identifier){
                $newGameAction->execute($arguments['game_id'], auth()->id(), $identifier);
            });
    }
...