Hachyderm is my instance. It’s heavily influenced by techy people, but there’s a bit of everything there. Strong culture of safety for social justice - some of the most followed LGBTQ and Black accounts post from there. I’d highly recommend.
Others I’ve enjoyed browsing are indieweb.social and toot.community
Going to show my privilege here and say Superhuman. It’s expensive as hell, but if you’re like me and email is a major part of your job, it may be worth it. I can get the gmail web client to do about 90% of what Superhuman does, though. So for an economical version, perhaps look up a guide on how to setup and use the Gmail web interface with nothing but a keyboard. In my experience, taking the time to learn how to navigate your inbox in this way pays dividends down the road. Good luck!
If he’s referring to Lemmy.world he’s wrong. Lemmy.world has a different admin who’s not connected at all to Lemmy.ml admins afaik
This is exactly it