Element really needs make the JIRA addon an option on their paid servers. They have Github and Slakc, I would think JIRA is close to as popular a request as those. There even is a lib for it:

github.com/mobitel-ltd/jira-to…

GitHub - mobitel-ltd/jira-to-matrix: JIRA to Matrix bot

JIRA to Matrix bot. Contribute to mobitel-ltd/jira-to-matrix development by creating an account on GitHub.

^GitHub

@rumo

Someone publishes few pieces manually on @matrix. Not consistently, but I think they are doing steps in the direction of migrating here wholeheartedly, just not so fast. If you really want to hear from *human* human, find individual devs of #Matrix on #Mastodon and look how they are doing.

Most notably, I found @thibaultamartin and @travisr. Follow them!