NavMenu.razor

<div class="top-row ps-3 navbar navbar-dark">
    <div class="container-fluid">
        <a class="navbar-brand" href="">SampleBlazorApp</a>
    </div>
</div>

<input type="checkbox" title="Navigation menu" class="navbar-toggler"/>

<div class="nav-scrollable" onclick="document.querySelector('.navbar-toggler').click()">
    <nav class="nav flex-column">
        <div class="nav-item px-3">
            <NavLink class="nav-link" href="" Match="NavLinkMatch.All">
                <span class="bi bi-house-door-fill-nav-menu" aria-hidden="true"></span> Home
            </NavLink>
        </div>

        <AuthorizeView>
            <Authorized>
                <div class="nav-item">
                    <NavLink class="nav-link" href="profile">
                        <span class="" aria-hidden="true"></span> Hello @userName!
                    </NavLink>
                </div>

                <div class="nav-item">
                    <NavLink class="nav-link" href="/logout">
                        <span class="" aria-hidden="true"></span> Logout
                    </NavLink>
                </div>
            </Authorized>
            <NotAuthorized>
                <div class="nav-item">
                    <NavLink class="nav-link" href="/login?redirectUri=/">
                        <span class="" aria-hidden="true"></span> Login
                    </NavLink>
                </div>
            </NotAuthorized>
        </AuthorizeView>
        
    </nav>
</div>

@code {
    [CascadingParameter]
    private Task<AuthenticationState>? authenticationState { get; set; }
    public string? userName;
   
    protected override async Task OnInitializedAsync()
    {
        if (authenticationState is not null)
        {
            var state = await authenticationState;

            userName = state?.User?.Identity?.Name ?? string.Empty;
        }

        await base.OnInitializedAsync();
    }
}