For Element, Matrix' flagship client, you are correct.

Anyone can build their own clients, however, and apps like FluffyChat & Syphon aim to mimick the look and feel of WhatsApp.

This is where Matrix comes in. Fully open source and supports federation the way Lemmy does. (Even more effectively, actually.)

Agnosticism is the view or belief that the existence of God, of the divine or the supernatural is unknown or unknowable.

Atheism is an absence of belief in the existence of deities.

Atheism isn't a religion.

This platform deserves a community solely dedicated to trolley memes.

Please tell me that there's a Lemmy community out there for EU memes.

Why is that? That shouldn't be necessary, should it?