This is it. Imagine you setup your RSS reader to fetch your tech news from multiple sites. You can get from LTT Forums, Ars Technica, Kit Guru, The Verge, and so on… You will start seeing news from multiple “servers” in your reader, and that’s pretty similar to what you’re getting here on Lemmy too. If you want to think in Reddit terms, you are just cutting the middle man (Reddit in that case). I know the analogy doesn’t fully translate, but honestly if you think about it, having everything from one single source is the weird case.
I’ve heard of some corporate environments using different tools because of some weird use case, but honestly I think it doesn’t justify, if you’re taking it seriously you should be using git.