Where do Internal testers download Google Play Android apps?

I thought I need just this link https://play.google.com/store/apps/details?id=com.here.myapp.name to download an app from Play Store, but when I click on it from tester account (which in tester list) I can only see

The link of testing will be https://play.google.com/apps/testing/packagename and you can find that in Alpha/Beta publish tab.

https://play.google.com/apps/publish --> Select app --> Release Management --> App Release --> Alpha/Beta --> Manage --> Opt-in URL (URL for testing)

Updated to add tester (Close test)

Add testers

1. On the left menu, select Settings Settings > Manage testers > Create a list.
2. Type a name to identify your list of testers. You can use the same list for future tests on any of your apps.
3. Add email addresses and create list.
4. On the left menu,select Release management > App releases.
5. Next, to the closed track, select Manage.
6. Next to "Choose a testing method," select Closed Testing.
7. In the "Users" section, check the box next to the list you want to use.
8. List of will be notified and selected user can accept the invitation and test the app.

Here's how I found it (with help from Scar Coder's answer)

1. Log into the Google Play Console and select the app from the list, then click the App releases option in the left sidebar, then click the 'Manage' button for your internal test release:

2. Expand the 'Manage testers area'

3. Copy the Opt-in URL:

You just might have to wait...

The initial release time of up to 48hrs is what confused me, and is not well communicated on the Play Console:

Searched for "android Available to internal testers", as Play Console stated exactly this, without the link providing an app (see original question).

For the new Google Play Console version

1. Open your app → Release → Testing → Internal testing
2. Tap on Testers → Scroll down and you will see How testers join your test at the bottom.

After that testers should accept the inventation, install app from Google Play and check the updates

App should come to the published status before the Opt-in URL is enabled. You can get your app status in the small '?' symbol or in the drop down box location above the page. Google takes some time to review the app before publish after you submitted it.

On the Play Console, there is an opt-in url that needs to be sent to the internal testers before they can be able to download the app

https://play.google.com/apps/publish --> Select app --> Testing(in Release Part) --> Internal testing --> Testers and scroll Down and in How testers join your part take link of your app by clicking copy link part

You should visit the link on an Android device

As per the new Google Play console, you can share your app to internal testers by visiting internal app sharing upload page, Upload a new appBundle and share the link.

You can manage your internal testers under internal testing in the play console.

> With internal app sharing, you can quickly share an app bundle or APK with your internal team and testers by uploading an app bundle or APK on the internal app sharing upload page and generating a link. When sharing your app this way, you can restrict access to email lists only or allow anyone whom you share the link with to download.

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