Barcelona should be able to have a much better season than the previous one. There are big expectations from especially Lewandowski and Raphinha in this season. Xavi isn't refraining from spending too much money now as he is targeting to build right the team he wants to see. Kounde has also been signed by them officially for a transfer fee of 50 million euros (according to Transfermarkt). They still don't seem like they will stop as they are targeting one left back and one right back also.
Actually I also don't really like this because as you said they don't hold back in the transfer market even though they are having financial difficulties.
But if you look at their current squad, it is very hopeful to see them competitive in La Liga now after last season Madrid smoothly took the trophy. although indeed I still see Madrid will bring the trophy again now but it will still be a bit difficult for now.
Of course next season will be more difficult for Real Madrid to win the La Liga trophy again, especially with the purchase of players made by Barcelona.
Now it can be said that Barcelona already has a very strong squad, not only Barcelona's main players who have good quality, however, Barcelona has
a reserve player whose quality is not much different from the main players. This means that Barcelona has a very good squad depth, it's just
a matter of how Xavi makes good use of Barcelona's players.
Very different from Real Madrid, which in some positions does not have substitutes of the same quality as the main players. So Real Madrid, if one of
its main players is injured, will experience a decline in performance. Real Madrid should have brought in more new players, especially Real Madrid had
to bring in a striker as a cover for Benzema. If there were no injuries to the main Real Madrid players, Real Madrid had a chance to win the La Liga
trophy again. We'll see how Barcelona and Real Madrid will compete next season, La Liga next season of course I think will be much more interesting
than the previous season.