I hesitated to go for Ente, I eventually just switched to 2FAS, it's also open-source and easy to use. Happy so far. It's possible to keep a backup in iCloud. Btw, I never scan 2FA QR codes, I copy the token-secret (string) and paste it in first in the 2FA app, and then again in an encrypted file that I keep as 2FA backup. It's much easier when you switch app, and more reliable than recovery codes when you lose 2FA device.