No, that's when they open sourced it. It was designed in 2018/early 2019 and picked up the May 2019 RVV spec. By late 2021 I already had a commercially sold C910 dev board (RVB ICE).

https://linuxgizmos.com/dev-kit-debuts-risc-v-xuantie-c910-s...

Android was shown running on an earlier C910 board (ICE EVB) for the same THead ICE test chip already by January 2021:

https://www.hackster.io/news/alibaba-s-t-head-releases-open-...