Agree 100%, as a rule of thumb, if you agree on almost all that you see in your instance or with your peers, and you don’t experience some level “being triggered” rest assured you are on an ecco chamber. But is true that sometimes you want some really specific content, that is when it is useful a non generalistic instance.
If you can host your own instance, wouldn’t that mean that you can upload whatever content you want? Right, left, libertarian, no-politic, etc…?
Though if it doesnt federate is better to stick with lemmy though is strongly left leaning but is gettin quite diverse in all ways