It is not true that TED got replaced or killed. In fact, it is still the leading transfer method considering the transaction volume, and by a good amount. Pix leads considering the sheer quantity of transactions. According to Central Bank data[0], in the last quarter, 2.09 trillion USD was settled via TED vs 720 billion USD via Pix.

Pix is great as a payment method for the average person, you use it to split a check and pay for your Uber, but big money still flows mostly via TED and other means.

[0] https://www.bcb.gov.br/estatisticas/spbadendos