Really easy. I assume when you say “social media” website you mean Reddit. Reddit was a website I’d browse to kill time when I was bored to find amusing content. Thanks to their recent policy change and their crappy treatment of their users, I torched my 10+ year old accounts and moved over basically overnight. Plenty of like minded individuals have done the same in the past couple months it seems. The fediverse has reached critical mass.
The core of Reddit were their users and the mods who volunteer their free time to look after the site, and they shat all over them. Killed the golden goose as it were. I’m a little surprised as to how many people (especially mods) are still hanging around over there.
I found an Android app similar to RiF so it wasn't hard at all. Still testing it out, but it's very similar and I like trying new things. FWIW the app is Connect.