2FA for user account security is important. It helps their users to avoid fund loss if they can set up 2FA and it helps to reduce tasks on their customer support team too.

2FA feature for account security is good but users must use 2FA rightly too. Setting it up on a different device of where they log in email address and account is recommended practice.

They must back up 2FA code for installation too because it can help them to import 2FA on another device.

Aegis is a good 2FA application as it is open source.
https://getaegis.app/