参考：https://fontmeme.com/tiktok-font/
TikTok is a video-sharing social networking service created by ByteDance. The social media platform allows its users to make and share a variety of short-form videos, from genres like dance, comedy, education, etc.
The TikTok logo features a three-color musical note against the black background. The symbol also echoes the letter d, which is the initial of its Chinese name Douyin. The wordmark below, highlighting an accented letter o, was probably custom lettered. The closest free font we found that resembles the lettering is Montserrat Semi Bold [ https://fontmeme.com/fonts/montserrat-font/ ].