Looking for Discord alternative for communist org

The commie org that I am a member of is looking to move off of Discord given the fuckery with their age verification controversy and general insecure-ness about it.

A couple options have been put forward, mostly Discord clones because that's what people are comfortable using.

Personally, I am pushing for something that supports end-to-end encryption like Element/Matrix, but there are of course some drawbacks (it's a bit buggy/glitchy sometimes esp with video calls, and it doesn't seem to support whimsical emojis unless I am mistaken)

Is anyone able to provide some suggestions? Ideally I'd like to encourage something that is open source and supports encrypted messaging, but also user friendly if possible. I have used Element/Riot/Matrix for years and I know it can be a pain in the dick (especially for n00bs) with setting up encryption keys and whatnot, but IMO is probably worth the trouble.

What other options should we be looking into? Telegram? WhatsApp? AFAIK there is Pissraeli Pegasus (and probably other) malware that specifically targets broadly used applications even though they are touted as secure and encrypted etc.