Regarding the rivalry, currently Real Madrid doesn't have a mainstay striker like Benzema, so Lewandowski is likely to regain the position for La Liga top scorer in the new season. Because previously he also succeeded in become the top scorer with 23 goals, but it would be interesting if Joselu could show his quality as a main striker, considering that previously he was also the top scorer with 16 goals.
If Lewandowski continues to score just as little, then it is very likely that some "regular" striker from the average team will be able to get around him. 23 goals is not at all the level in modern realities, not only for La Liga, but even for the Premier League, where Kane scores 30 goals in a season and he is still not in first place (because of Haaland).