8: App catalog missing from SharePoint Modern site content

Before we deployed our spfx extension. Extension Deployment

8.1: App catalog missing from SharePoint Modern site content

If by default Apps For SharePoint is not available you have to perform following steps:

1: Run SharePoint Online Management Shell

2: Connect with your site by editing url like this:
https://<SiteCollectionName>-admin.sharepoint.com
Example: https://sabeehsharif-admin.sharepoint.com

3: Run this command:
$site = Get-SPOSite <SiteCollectionUrl>
Example: $site = Get-SPOSite https://sabeehsharif.sharepoint.com/

4: Run this command:
Add-SPOSiteCollectionAppCatalog -Site $site

5: Now go and verify your site content

Here you can upload your .sppkg package of SharePoint spfx.

Next 9: Steps to Uninstall Spfx WebPart/Extension from Site

Thanks Best Of Luck. If you stuck somewhere please feel free to ask in Comment. #SharingIsCaring