For me, the near-perfect solution has been available for a long time now, only costs the data overhead, and you have total control over the data. Granted, some

For me, the near-perfect solution has been available for a long time now, only costs the data overhead, and you have total control over the data. Granted, some companies prefer that another company manage that data security, so there's less on their IT hands. Mattermost/Nextcloud/Jitsi