In Maker portal (make.powerapps.com), expand Data on the left menu and select Connections. You should all the connections that are used in your apps there. Click on "Common Data Service" connection, then on "Apps using this connection" and you'll see all the apps that use CDS.
I'm not sure I understand your last statement "see cds on all apps", but that's exactly what I mentioned. Opening the CDS connection and selecting "Apps using this connection" will show you CDS on all apps of that environment. If you have multi-environments (i.e. Dev, UAT, Prod), you'll have to check per environment. Unfortunately there's not one for multi-environment and if this is what you're looking for than I suggest to submit that idea at: https://powerusers.microsoft.com/t5/Power-Apps-Ideas/idb-p/PowerAppsIdeas