/search?filter=some+stuff&page=3&assignee=User1&assignee=User2

@code {
    [Parameter]
    [SupplyParameterFromQuery]
    public string Filter { get; set; }

    [Parameter]
    [SupplyParameterFromQuery]
    public int? Page { get; set; }

    [Parameter]
    [SupplyParameterFromQuery(Name = "assignee")]
    public string[] Assignees { get; set; }
}

String, bool, DateTime, decimal, double, float, Guid, int, long

var actualUri = NavigationManager.GetUriWithQueryParameters(new Dictionary<string, object>
        {
            ["full name"] = "John Doe", // Single value
            ["ping"] = new int?[] { 35, 16, null, 87, 240 }
        });

host/?full%20name=John%20Doe&ping=35&ping=16&ping=87&ping=240