Magento 2.3 – Programmatically Get Qty from All Assigned Sources

I don't know you guys get solution or not but here you go.

Here is the solution https://magento.stackexchange.com/a/262873/49826

Try this, it's working for me.

global $objectManager;        

$sourceList = $objectManager->get('\Magento\Inventory\Model\ResourceModel\Source\Collection');
$sourceListArr = $sourceList->load();
$i=1;

$sourceList = array();
foreach ($sourceListArr as $sourceItemName) {
    $sourceCode = $sourceItemName->getSourceCode();
    $sourceName = $sourceItemName->getName();

    $sourceList['sourcecount'] = $i;
    $sourceList['sourceCode'] = $sourceCode;
    $sourceList['sourceName'] = $sourceName;

    $sourceAllList[] = $sourceList;

    $i++;
}

print_r($sourceAllList);

//Output will be

Array
(
    [0] => Array
        (
            [sourcecount] => 1
            [sourceCode] => default
            [sourceName] => Default Source
        )

    [1] => Array
        (
            [sourcecount] => 2
            [sourceCode] => CAN
            [sourceName] => Canada
        )

    [2] => Array
        (
            [sourcecount] => 3
            [sourceCode] => USA
            [sourceName] => United State
        )

)