Most embeds I see on Discord are Bluesky. Bluesky seems to have taken over for social media links on sports subreddits. It saw a huge spike during the last game of the World Series.

https://old.reddit.com/domain/bsky.app/

Those might not matter to you, but neither did the early cohorts that drove growth on early Twitter matter to most people. Enough large mainstream cohorts set up a base there after the election spike that it's still growing toward the peak after dropping to a little less than half.