Currently, TLS errors are hard to debug. We should invest time to investigate solutions that improve diagnostics:

• We should be able to log the remote server's certificate. This may require changes to Node.js itself to allow reading the certificate (using .getPeerCertificate() or similar APIs) after a TLS error. Alternatively, we could re-connect with rejectUnauthorized: false and log the certificate, but still fail the connection once we have it, after NODE-6601.
• We should provide some way for users to print their system certificate list. We've asked customers to provide this information manually, but being able to run mongosh with a command line flag to retrieve this data may be worth it.
• ...?