ADB download link: https://developer.android.com/tools/releases/platform-tools
Timestamps:
0:00 Introduction
0:39 Step 1: Download the app you want to install
1:21 Step 2: Download ADB
1:40 Step 3: Extract the downloaded folder
1:58 Step 4: Move your APK to the ADB folder
2:06 Optional step: Rename your apk
2:27 Step 5: Plug-in your crystal
2:45 Step 6: Open the command prompt (in the folder with adb.exe)
3:01 Step 7: Confirm ADB is working and detects the crystal
3:51 Step 8: Install the APK
did steam link apk end up working?