How to insert a news feed from a Facebook account into your website without dancing with a tambourine?

Question

Facebook

It's gone, honestly. Went through the whole search.
There are not many manuals here, that there are not many blochers on the pages, and even those, for the most part, are "rotten" - Facebook, as far as I understand, is constantly changing something in its API.
I have a rough acquaintance with PHP and JS, English is an understand, but reading it for a long time is still tiring. Do not hunt their dock on the whole API to smoke just because of such a trifle. I was already "forced" to go and register in their developer section, create some kind of fake application, some kind of page with this application, some tokens / keys / IDs ... then everything stalls, because Russian recipes diverge with the current interface, or what Facebook generated for me, stupidly does not work as expected.
Banal iframe with one post - yes, no problem. And I need the entire news feed so that the content is reflected on the site with minimal body movements.

Answer 1

In general, FIG knows, but so far it turned out stupidly to pull out an iframe with a Facebook feed from another site and another channel, then simply replaced the link to "src =..." in the frame code with the desired fb channel. The addresses of the "channel" and "domain" left the old ones. I uploaded it to the host, checked it through a proxy - miracles, but so far it works as it should.
Why and where, one wonders, are there any tokens and registrations, if such a primitive copy-pasting works? The only thing that unites these two channels is one owner.