Using CSOM Check Current Logged in User is Exist in Particular Some SharePoint Group

public bool IsCurrentUserExistInSPGroup(ClientContext ctx, string groupName)
{
    Web web = ctx.Web;
    ctx.Load(web.CurrentUser.Groups);
    ctx.ExecuteQuery();
    GroupCollection groups = web.CurrentUser.Groups;
    foreach(Group group in groups)
    {
        if (group.Title == groupName)
        {
            return true;
        }
    }
    return false;
}