I dropped Feedly for the most basic reason possible: it didn't display my feeds readably. I read a lot of math blogs and the TeX formulas in them didn't show up in Feedly (and maybe a few did appear but with incorrect spacing). Inoreader renders them just fine.
This was years ago, and back there was already a feature request on Feedly's website asking for this to be fixed. I just took a look at that request it looks exactly the same, so either they haven't done anything about this (most likely) or they fixed it but forgot to close the issue.
It's not just nice but necessary. I didn't give up Feedly because it was merely incovenient, but because I often couldn't understand a blog post without the formulas.
I just open the actual site when that happens, which makes the feature a convenience rather than a necessity. I can't remember the last time that happened to me though. If this were affecting me regularly I'd probably feel like you.
This was years ago, and back there was already a feature request on Feedly's website asking for this to be fixed. I just took a look at that request it looks exactly the same, so either they haven't done anything about this (most likely) or they fixed it but forgot to close the issue.