Some small corrections.

The correct path from the Alby account interface is Settings > Connect to your node.

Since I run manual installation of LND, it wasn't clear how to get the correction values to place in the first 2 fields. So this sent me an multiple hour journey to get the answers.

I posted the following question to Alby support for confirmation.

Macaroon (hex)
The value outputted from the following command?
xxd -ps -u -c 1000 /home/.lnd/data/chain/bitcoin/mainnet/invoices.macaroon

Certificate (hex)
The value between the 'Begin' and 'End' Certificate delimiters from openssl.
openssl x509 -fingerprint -in ~/.lnd/tls.cert.