unredacted.org lets me send up to 250 MB.
As for the character limits, for me and most people they're important because we're not using that only for voice chat and little gaming messages, we're using them mostly for structured projects, creative stuff, or even simply joining communities of our interest (I'm full on music production, so I'll surely look for one community that gives me larger convos about that).
PS: Also, they're AI slop.
- https://codeberg.org/ethical-foss/ai-free-foss-alternatives#messaging-clients
- https://web.archive.org/web/20260213205023/https://blog.fluxer.app/how-i-built-fluxer-a-discord-like-chat-app/
- https://github.com/fluxerapp/fluxer/blob/main/.github/CONTRIBUTING.md#authorship
- https://github.com/fluxerapp/fluxer/issues/435