I use Feedly, which is pretty nicely designed (it has other drawbacks, but it looks and feels like a modern, proper app).
The real frustration is that websites only put short extracts of their content into the RSS feed to force you to go and... look at their ads, I guess? But I'd imagine the number of folks using RSS feed readers who don't also use ad-blockers is vanishingly small.
You don't get them with wholemeal bread.