How to get notifications in telegram about new posts in facebook group?

Question

Facebook

Not the first hour I try to do this with the help of integromat, ifttt, it does not work. I don’t use FB, but it’s important for me to find out about new posts in some groups (or pages), I don’t even need to see their content in telegrams, just know that a new post has appeared in such and such a group. How can you receive such notifications? It is desirable that the check was at least 2-3 hours.