RSS Feed Clarification

So.... I subscribe to the Verge RSS feed and the Verge RSS fees for gaming. Today I noticed all the feeds posted in the normal RSS feed are tagged front Page when I open them on mobile. Does that mean I only get the front page when I use the normal RSS feed? I know I need to subscribe to the gaming feed to get all the gaming posts, but I didn't think I needed to subscribe to The Microsoft feed to get all the news out of Redmond, or the Apple feed to get all the Apple stuff. Was I wrong?