EFCore Optional filter / Composite filter

public record GetItemsFilter(string? Title, bool? IsCompleted);

public async Task<List<Items>> GetItems(GetItemsFilters getItemsFilter)
{
  IQueryable<Items> itemsQuery = _dbContext.Items;

  if(getItemsFilter.Title != null)
  {
    itemsQuery = itemsQuery.Where(item => item.Title == getItemsFilter.Title);
  }

  if(getItemsFilter.IsCompleted != null)
  {
    itemsQuery = itemsQuery.Where(item => item.IsCompleted == getItemsFilter.IsCompleted);
  }

  return await items.ToListAsync();
}

public async Task<List<Items>> GetItemsAsync(GetItemsFilters getItemsFilter)
{
  return await _dbContext
    .Items
    .Where(item => item.Title == getItemsFilter.Title); // won't build because nullable
    .Where(item => item.IsCompleted == getItemsFilter.IsCompleted); // won't build because nullable
    .ToListAsync();
}

public async Task<List<Items>> GetItems(GetItemsFilters getItemsFilter)
{
  return await _dbContext
    .Items
    .Where(item => item.Title == getItemsFilter.Title ?? "") // bad SQL generated in WHERE clause
    .Where(item => item.IsCompleted == (getItemsFilter.IsCompleted ?? item.IsCompleted)); // bad SQL generated in WHERE clause
    .ToListAsync();
}

var items = await GetItemsAsync(new GetItemsFilter(null, null));

SELECT ...
FROM ...
WHERE title ... '' and iscompleted == coelse(null .... ;-- BAD SHOULD NOT HAVE BEEN GENERATE