I don't want to make you use it more, but I found a thing that actually works for me, to restore some of the previous feed behavior. I saved a bookmark that directly goes to the "Friends" feed. It seems to have surprisingly few (I think zero or one) ads and recommended things this way. The funny thing is that the "You read all the posts" thing still appears if used in this way, telling you to go outside.
I do the same for instagram [2], and there was also a post of setting "Google web" as the default search engine, showing you actual web results, not stuff recommended by Google.
Thanks! The "friends" filter with facebook does not really work from me (I have unfollowed all my fb friends and follow only pages/groups mostly for events and such) but realised that replacing "friends" with "following" in the url actually provides a feed with anything I am following, so really thanks!
I used to use the FBP extension but it still takes so long to load and filter out stuff that facebook floods my feed, so this is much better.
Interestingly for me on iOS, that instagram link just takes me to the main feed in the app. For anyone else getting this, you have to tap the instagram logo on the top left, then select “following” from there.
I do the same for instagram [2], and there was also a post of setting "Google web" as the default search engine, showing you actual web results, not stuff recommended by Google.
https://www.facebook.com/?filter=friends&sk=h_chr [1]
https://www.instagram.com/?variant=following [2]