Following a number of high-profile situations and based on the expectation that a player who is clearly in an offside position should not become ‘onside’ on all occasions when an opponent moves and touches the ball, The IFAB and FIFA, after discussions with football stakeholders, have clarified the guidelines for distinguishing between ‘deliberate play’ and ‘deflection’.

Details at https://www.theifab.com/news/law-11-offside-deliberate-play-guidelines-clarified/