I used RIF exclusively - just super simple. Any app out for Kbin/Lemmy that gives a similar experience?

I was doing the same thing. I didn’t realize how crappy Reddit had become until I was forced to look at Popular instead of my custom subreddits. Oh well, I was still using RIF to keep up on a couple of subreddits, but honestly, I’ve been making a lot better use of my free time, so maybe it’s good for me for it to be gone for good