That is what we discovered on Wikipedia relating to the mxmtoon:

Maia (born July 9, 2000), known professionally as mxmtoon ( em-ex-em-TOON), is an American singer-songwriter and YouTuber. Her music is characterized by emotionally transparent, confessional lyrics and often employs the ukulele. She released her first EP, Plum Blossom (2018); her debut album, The Masquerade (2019); the 2020 twin EPs—Dawn, Dusk; and her second studio album Rising (2022). In 2024, she released her third studio album, Liminal Space.

Maia began self-releasing songs in secret in 2017, before the size of her online presence became too substantial to conceal. In addition to involvement with music, Maia is a streamer on Twitch, has made a podcast, has released two graphic novels, and provided protagonist Alex Chen's singing voice in Life Is Strange: True Colors. She has collaborated with artists such as Carly Rae Jepsen, Cavetown, and Chloe Moriondo, and resides in Nashville, Tennessee.