Think of it as different home screen. I personally like it, because the original home screen was slow and bloated with things I didn't care about. I just want it to launch Plex, YouTube, Jellyfin, etc.
From what I can tell, it looks like it consolidates everything into a single screen instead of having a few different tabs. It also looks like it gets rid of all the advertising, which is nice. My concern is that I think it probably also gets rid of the quick access to shows I'm currently watching.
Wow, this is awesome. I had no idea you could install different launchers onto it. I look forward to not having advertising to shit I have zero interest in