Summary of 2019/20 law change
"If the ball touches the referee or another match official and goes into the goal, or results in a change of possession or a promising attack, a dropped ball will be awarded."
https://www.premierleague.com/news/1292424#:~:text=Contested%20dropped%20balls%20are%20a%20thing%20of%20the%20past.&text=If%20the%20ball%20touches%20the,dropped%20ball%20will%20be%20awarded.
Dropped balls are not contested these days.
"Contested dropped balls are a thing of the past.
If play is stopped inside the penalty area, the ball will be dropped for the goalkeeper."
If play is stopped outside the penalty area and a dropped ball required, it will now be dropped for a player from the team that last touched it, where the last touch happened.
All other players must be at least four metres away.