Brent Simmons, the author of NetNewsWire (my feed reader for many years), writes about Mastodon support in his application. The interesting part is: How can Mastodon (or any other ActivityPub source) be integrated into traditional "feed reading" apps? There are some significant differences. I chewed on this a lot last year while tweaking the microsub parts of Knot. No substantial solutions, so far, but this might be where possible futures are negotiated.
inessential.com/2023/12/17/on_mastodon_support_in_netnewswire*