Nope! You're Wrong again.
Stockton Regular season 1504 games plus 182 total playoff games = 1686 total games in his career.
Lebron regular season 1421 games plus 280 playoff games = 1701 total games in his career.
I would also like to point out total minutes played by LeBron absolutely dwarfs Stockton by a staggering 6329 minutes. 54093 minutes played by Lebron as opposed to 47764 mins played by Stockton in the regular season.
It would be reasonable to assume he played more minutes per game in the playoffs as well.
6397 mins in 36 series for Stockton
11564 mins in 53 series for Lebron.
That adds another 5167 mins played to the 6329 mins played in regular season for a grand total of 11,496 mins.
If you break that down into 36 min games. It essentially adds 319.3 games to his career.
RECIEPTS
https://www.basketball-reference.com/players/s/stockjo01.html
https://www.basketball-reference.com/players/j/jamesle01.html