Some thanks confirmations (on mobile and desktop) say "ABC received your thanks" when you send thanks.
(I saw this in production, and both thanks-thanked-notice and flow-thanks-thanked-notice have this text).
Whether the target receives your thanks is private information, determined by the Thanks notification preference. So this statement can be inaccurate.
It should just say you sent it/thanked them, similar to e.g. notification-header-mention-success:
"{{GENDER:$2|Your}} mention of <strong>$3</strong> was sent."
