What does ping mean in PUBG

Is the matching performed with ping?

The appropriate pool was separated after ping in order to create a better gaming environment and to improve the server stability
The update so that the ping matches the lowest players on the same server
was on February 22, 2018.
Thus, the match is made / broken according to the standard ping
Players with similar pings will be matched.
In addition, we will organize and advise you if you have any questions.
1. Can I play parties or play with players in other areas?
It is still possible to play a game with a player playing a game in an area with ping differences.
Due to the matching pool separation, the match will not continue or it will not jump to the beginning of the match.
2. What are the matchmaking criteria if I am playing with a player who lives in a different region?
A match is formed based on the player with the highest ping in the group, i.e. the player with a bad line.
3. How does a party take place when a duo or squad is assigned to a random group?
Matches users with similar pings on the server and does not match players with very different line states.