When you are on a private chat with another person and enable 'Block Copy, Forward, Sharing', when you send a link and the other person long-presses the blue underline text they will be prompted with the 3-option menu. The person you are on a chat with should not be able to see the 3-options.
Workaround: There is currently no known workaround for this issue.
Device Affected: IOS & Android
Experiencing this issue? Please contact support through the app by (1) going to your profile screen and (2) selecting 'Report Problem'.
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Reach our support team directly at help@fyi.fyi.