I would like to have a link to the feed page on the main page. I know the main page contains the feed, but I like the layout better on the feed page.

Providing a link to the feed page would be pretty redundant and useless from the perspective of a new user. The main page contains precisely the same content as feed page 1. If you really prefer the feed-only experience, you can always bookmark page 1 of the feed for yourself.

I liked all posts link on main page too :(

+1 for having a link on the main page, I've been missing that as well!