Soccer Dad & Ref
SILVER ELITE
In the first video, the attacker is pushing backwards into the stationary defender. That is the type of stuff I'll warn about when I see it, before the kick is made. It's what you see the pros doing when they hold up the kick.
The 2nd video looks like the little red dude is getting pushed while he is simply moving around, but not back into the goalie or defender. Goalie should be warned in that instance.
In your scenario, the keeper can only be impeded on if he was trying to move forward, and the attacker stepped in front of him. A sideways back and forth of standing in his view of the ball is not impeding, but will likely be interfering in an offside position once the ball is kicked if he is still doing it.
The 2nd video looks like the little red dude is getting pushed while he is simply moving around, but not back into the goalie or defender. Goalie should be warned in that instance.
In your scenario, the keeper can only be impeded on if he was trying to move forward, and the attacker stepped in front of him. A sideways back and forth of standing in his view of the ball is not impeding, but will likely be interfering in an offside position once the ball is kicked if he is still doing it.