Might depend on where you are in the world, it's not really the case where I am
Twitter, Bluesky, and Mastodon are most common for that format, and Chrome/Safari for browsers. I see more Firefox than Edge, with the exception being locked down work computers
I decided to try out Edge when I started my current job and was genuinely impressed and stuck with it. We use Microsoft products heavily so I figured it would only be appropriate to use a Microsoft browser to access them. The built in vertical tab support, multiple profiles, etc. it really does a dang good job which is a pleasant surprise
I wouldn't say hater, more like "each tool for its job"
LaTeX can be quite cumbersome for certain tasks, same as Word is cumbersome for other tasks. It all depends what the tool is made for, and what you try to use it for.
The good thing about Fediverse is the decentralization.
There's no one Lemmy instance, or Mastodon instance. You could use any server, or even selfhost your own, if you wanted to, and have pretty much the same potential for reach.
That's all anyone needs to know about the Fediverse.
The hard thing is authenticity. Particularly for public figures, celebrities, social media personalities, businesses, etc. People who want or need an online personality that corresponds to their real one. I really don't know what the method is for "proving" yourself on the Fediverse.
But...Bluesky is federated, at least in principle. If it stays single-instance for more than a year or so following the current uptick in popularity, then I'll accept that it's de facto not federated.
There's documentation on how to set up your own server for each of the components involved, and there are example servers running. It will take time for an organization to decide to run another major instance, though.