In my custom module, I'm using StockRegistryInterface to set qty and save my product. But on Magento 2.3 I started facing the issue of having 0 salable qty right after saving the product.

After digging a bit, I saw that StockRegistryInterface is deprecated and it was replaced with Multi Source Inventory. How should I save the qty of my product now?

Here is the piece of code where I do it with StockRegistryInterface:

        /* @var ProductInterface $product */
        $stockItem = $this->stock->getStockItemBySku($product->getSku());
        $stockItem->setQty($this->estoque_disponivel);
        $stockItem->setIsInStock(true);
        $this->stock->updateStockItemBySku($product->getSku(), $stockItem);