How can I see a Dynamics365 table?

I created a PowerApp by connecting to Dynamics365 and choosing the 'Currencies" table. In the tutorial video I watched, the narrator was able to see his app's table in Dynamics365 and was able to add and edit the records in that table, which would then show up on the PowerApp and vice versa.

When I bring up Dynamics365, I only see my PowerApps, I do not see a "Currencies" table. How can I see the Currencies table in Dynamics365? I have an Office365 Developer tenancy.

I am using a canvas app.

I attached images of my PowerApp, my Dynamics365 page, and the screenshot of the video I was watching that shows the presentor's Dynamics365 page which looks very different from mine and has the table with the data in it. He is using the Sales Leads table which I was not able to find in my list of Dynamics365 tables, that's why I used the Currencies table.

[My power apps edit screen][1] [1]: https://i.sstatic.net/QTNYe.png

[My Dynamics365 home page ][1] [1]: https://i.sstatic.net/WEtxi.png

[Dynamics365 table from video][1] [1]: https://i.sstatic.net/WvtKn.png

In that video tutorial - see the browser address bar, it says https://xxxxx.crm.dynamics.com which is Dynamics 365 CRM, you can go there by clicking the Dynamics 365 - custom tile in your https://home.dynamics.com

You are connecting to that Dynamics 365 instance in your canvas app as one of the Datasource connector. I can find it like below.

One more thing, that video shows classic UI whereas you may land in UCI (Model driven PowerApp UI). Read this tip to avoid surprises & confusions.