If this happened 15+ years ago, a huge chunk of the userbase likely would've migrated to alternatives, potentially resulting in Discord being replaced and falling into irrelevance.
Today, though, no chance that happens. The current generation literally grew up with it, same for most of the other established social media apps. The concept of alternatives largely does not exist for them. And besides, they were probably already sending pictures of themselves and other personal data to each other through the app, so it's not like Discord doesn't already have all of that.
I mean, I grew up with AOL AIM, Yahoo Messenger, and IRC... yet I switched every time a new tech came out with more of my friends on it. Why do we think discord will be any more sticky than Digg or Slashdot, or any of the above?
People will migrate, some will stay, and it will just be yet another noise machine they have to check in the list of snapchat, instagram, tiktok, reddit, twitter, twitch, discord, group texts, marco polo, tinder, hinge, roblox, minecraft servers, email, whatsapp and telegram, and slack/teams for work.
Absolutely exhausting to be honest.
There's also people who have been through enough of these moves and community splits that they're incredibly tired of it all.