This EL Classico can be very interesting because this time in this EL Classico Real Madrid don't have Benzema but they have players like Jude Bellingham who scored a goal in the last friendly match and on the other hand this game can be a hard test for Xavi and his players to find weakness and try to improve it.
You forgot that if real madrid has joselu on its team, which has been also in the list of top scorer last season under benzema. Joselu will able to replace benzema and it needs time till he will be fully adapted to the club. You didn't count that inf your post while joselu was also contributing a goal during the match against manchester united. Xavi has been losing against arsenal. I think that the new squad of real madrid gonna be much stronger even though there was noa. lot of changes on it.
It's caused by madrid was just only adding bellingham and joselu as central forward. It will be very interesting to see the next elclassico between real madrid and barcelona very soon.
The warm-up match before La Liga starts, the both teams will not prove anything in this match, it's just that maybe Barcelona and Real Madrid coaches might try some tactics in that match. But I think the both of coaches will see how performance of their new players in that match. It is still interesting to watch the progress Sir. Barcelona previously lost against Arsenal, will improve their weaknesses. And Real Madrid previously won against Manchester United as well as Milan, maybe they will be more confident to beat Barcelona.
If I want to talk about El Clasico. El Clásico will be great, Barcelona team is full strength now. Also, Real Madrid will focus on La Liga from now on. So the matches between these two teams will be very competitive.