I noticed TikTok does something similar. For example, if you copy a link to a creator's page while logged in, your profile is encoded into the URL and your name

I noticed TikTok does something similar. For example, if you copy a link to a creator's page while logged in, your profile is encoded into the URL and your name and photo are displayed alongside the linked content. It's two steps to fix it - open the encoded link yourself, remove the extra data, then send the cleaned link.