Android blocks apps from outside the Google Play Store by default for security. You must grant permission to your browser (e.g., Chrome) to install them. Open > Apps & notifications . Tap Special app access > Install unknown apps .
Before installing, it is best practice to check the file for hidden threats. How To Install APK Files On Any Android Download APK File v11.20
: If available, always prefer the developer's official website. 3. Verify and Scan the File (Recommended) Android blocks apps from outside the Google Play