There's not really an easy way to break it to you, but yes, the inverted filter on TikTok is indeed accurate. There isn't really any super fancy technology going on with the filter — it literally just flips the image and shows the reflection of the footage rather than the footage itself.

Is a mirror or inverted more accurate?

If you consider yourself, what you see in the mirror is probably the most accurate image of you because it is what you see everyday – unless you see yourself in photos more than in mirrors. ... Since they see you in this way most of the time, for them what you see in pictures is the most accurate interpretation of you.

Is the TikTok inverted filter how others see you?

When using the filter, you're actually looking at the “unflipped” image of yourself, or the version of yourself that everyone else sees when looking at you. ... When it comes to our self-perception, this means that we prefer our mirror images instead of our true images, or our reflection as opposed to what others see.