I am assuming that after reinstalling the app the public address that is displayed on top (Account1) is the same as the one you had in MetaMask before uninstalling. If yes, then you just need to re-add the custom networks you previously had. This is because, after reinstalling it MetaMask essentially considers your wallet to be a completely new instance of the app, and will not retain any of the data that was previously stored locally — custom networks being one example.
Now, in order to see your BNB you would need to re-add the Binance Smart Chain network. And since BNB is the native token for BSC it should be displayed automatically after you add it.
Regarding the other token: I see that this GUARD token is also on BSC → in order to see your balance, you would need to import it, using its contract address.
The link I shared above only guides you how to add a custom token, but did you add the Binance Smart Chain network first? Will leave a link for that too.
There is no way for me/us to know whether your tokens were on an imported account My suggestion is to type in your address on the BSC scan website and click on the tokens menu to see if GUARD is listed there. If you can see it there and the public address is the same as the one in your MetaMask wallet, then the tokens should be displayed after adding them using the contract address.
My suggestion is to type in your address on the BSC scan website and click on the tokens menu to see if GUARD is listed there. If you can see it there and the public address is the same as the one in your MetaMask wallet, then the tokens should be displayed after adding them using the contract address.