There was a big controversy around Zoom calling it E2E with their server being one of the ends. Not sure what their new narrative is but I do not trust Zoom to do the right thing regardless.

I'll go out on a limb and propose that end-to-end encryption and many-to-many real-time multimedia communication are two things that aren't often combined in a single product.

only if you trust them -- zoom has never had me submit a public key of any kind, so they're in control of all encryption parameters