❔ UniTask / Unity - await/async connoisseurs wanted. Need help understanding

    public void TryRegister()
    {
        TryRegisterAsync().Forget(); // UI Register Button - Fire & Forget Method, 
    }
    public async UniTaskVoid TryRegisterAsync()
    {
        PlayerSelectionData[] psd = await tryRegisterAsync();
        
        UI_PlayerSelection.Instance.Init(psd);
        gameObject.SetActive(false);
    }
    private async UniTask<PlayerSelectionData[]> tryRegisterAsync()
    {
        var email = _emailInput.text;
        var pass = _passwordInput.text;

        PlayerSelectionData[] psd = await CommsManager.Instance.CMD_TryRegisterAsync(email, pass);

        return psd;
    }

    public async UniTask<PlayerSelectionData[]> CMD_TryRegisterAsync(string email, string pass)
    {
        await UniTask.Delay(1000);

        var psd1 = new PlayerSelectionData("Player_1", 3);
        var psd2 = new PlayerSelectionData("Player_2", 10);
        return new PlayerSelectionData[] { psd1, psd2 };
    }