I checked the wiki, and there's nothing about Brandon Aiyuk unfollowing Jayden Daniels on social media — that kind of off-field rumor isn't something the wiki tracks.
What the wiki does cover is that Aiyuk has reportedly expressed interest in reuniting with his former Arizona State teammate Jayden Daniels in Washington (from the Commanders page). But as of late June, Aiyuk is still in contract limbo with the 49ers — he hasn't even filed for reinstatement yet — and the Falcons have emerged as an active suitor too. So plenty of drama around that connection, but the unfollow thing specifically isn't documented here.