Yeah any level of "anonymity" on Discord died long ago, if it ever existed in the first place. For me, any platform which doesn't enforce Tor is considered very NOT anonymous - even if its accessible through Tor, I don't trust it that much if I'm one of the only people actually using Tor to access the platform.

SimpleX seems trustworthy enough, with thoughtful design decisions, even if it fails my "forced tor" requirement. I haven't spent the time to dive into Session's architecture, but it's on my to-do list, currently the marketing copy makes it look like the best choice.