Okay, so, originally, I was going to look it up to prove you wrong, but after looking it up across multiple sources, it seems that you’re right and I’m wrong.....mostly.

How-To Geek, Proton, and CloudFlare all mirror what you say.

However, the Wikipedia page section “Definitions” does back me up somewhat. It says:

The term “end-to-end encryption” originally only meant that the communication is never decrypted during its transport from the sender to the receiver.[23] For example, around 2003, E2EE was proposed as an additional layer of encryption for GSM[24] or TETRA,[25] ... This has been standardized by SFPG for TETRA.[26] Note that in TETRA, the keys are generated by a Key Management Centre (KMC) or a Key Management Facility (KMF), not by the communicating users.[27]

Later, around 2014, the meaning of “end-to-end encryption” started to evolve when WhatsApp encrypted a portion of its network,[28] requiring that not only the communication stays encrypted during transport,[29] but also that the provider of the communication service is not able to decrypt the communications ... This new meaning is now the widely accepted one.[30]

(Relevent text is embolded.)

So, I’m not misunderstanding, just misinformed that the definition changed.

Make no mistake, of course: I do appreciate you correcting me as I hadn’t realized the definition had changed. Lol.