Been using Discord for more informal communication. Doesn't have all the business tools like Slack & Teams, but it's lighter and works for our small team.
@zmiro We've been using Discord for two years in a company with 100+ employees. It's a great solution, superior to Slack and Teems at the same time.
Our last corporate messenger was Slack. Recently started using it again to communicate with a partner company. Slack is just awful compared to Discord.