i have forgotten my encrypted backup password

The Charp's wrote:

I have forgotten my encrypted iPhone backup password and now I can't put it on my new iPhone

That is correct, it is working as intended.

You'll need to remember the encryption or you won't be able to use your backup.

Sorry, without the password to an encrypted backup, you cannot use it to restore, you can still do backups though.

There's no work around methods or ways to bypass.

If you want to restore that backup, you'll need the password.