Deliberate play is one of the factors that is considered when calling offside if there is a touch of the ball by a defender. The rules currently say if a defender intentionally plays the ball, the attacking player is not considered offside. Right now, there is confusion as to whether wildly kicking at a ball is considered an intentional play on the ball (vs a controlled and intended pass that goes where it wasn’t intended).

well my interpretation is that it’s for situations like what happened last season with Rashford (or Weghorst) for example, attacker is in offside position, defender makes a move for the ball, but deflects it perfectly for the offside attacker who scores (can’t find a replay unfortunately)

in that particular instance the defender clearly moved his leg towards the ball, attempting to kick it away

now based on what’s written article

A ‘deliberate play’ is when a player has control of the ball and with the possibility of:

• Passing the ball to a team-mate; or
• Gaining possession of the ball; or
• Clearing the ball (e.g., by kicking or heading it)

If a player is considered to be in control of the pass, attempt to gain possession or clearance, this would be a ‘deliberate play’ and the attacker in an offside position should not be penalised for offside. An inaccurate or unsuccessful action does not change the fact that the defender ‘deliberately played’ the ball.

my interpretation is that now these situations will not be judged as offside.

mainly due to the 3rd point