if (SteamManager.Initialized)
{
    string name = SteamFriends.GetPersonaName();
    Debug.Log(name);

    CSteamID steamID = SteamUser.GetSteamID();
    profilfoto.GetComponent<RawImage>().texture = steamAvatarGetir(steamID);
}

public Texture2D steamAvatarGetir(CSteamID steamID)
    {
        int FriendAvatar = SteamFriends.GetLargeFriendAvatar(steamID);
        //Debug.Log(FriendAvatar);

        Texture2D m_LargeAvatar = new Texture2D(150, 150, TextureFormat.RGBA32, false, true);

        uint ImageWidth;
        uint ImageHeight;
        bool ret = SteamUtils.GetImageSize(FriendAvatar, out ImageWidth, out ImageHeight);
        if (ret && ImageWidth > 0 && ImageHeight > 0)
        {
            byte[] Image = new byte[ImageWidth * ImageHeight * 4];
            ret = SteamUtils.GetImageRGBA(FriendAvatar, Image, (int)(ImageWidth * ImageHeight * 4));
            if (ret)
            {
                m_LargeAvatar = new Texture2D((int)ImageWidth, (int)ImageHeight, TextureFormat.RGBA32, false, true);
                m_LargeAvatar.LoadRawTextureData(Image);
                m_LargeAvatar.Apply();
            }
        }
        return m_LargeAvatar;
    }