Before the whole Reddit migration I was passively aware of the Fediverse, I thought I somewhat grasped the concept, and had created a Mastodon account, but never really used it.
But once the migration started, I decided to try out Kbin, and really liked it, and even started to use Mastodon more often.
Same here for me, when Apollo declared it would stop support I completely dropped reddit and started on Lemmy. Initially the web app for Lemmy was a bit rough for me to use but then I found Memmy and have been here since!