We use Discord at a small startup. It's nice because we can easily get our external clients on and make rooms for giving them customer support without going through the janky slack process. We also have public channels so people can come by and report bugs or ask for help. Highly recommend Discord. It's a great product.

I talk to my friends on Discord almost exclusively, though one of the communities I'm in is also bridged to Matrix. I do not do crypto or gaming really.