That's disappointing. This is a clear example of an "improvement" that ends up making things worse. When I click on an item, say interest expense, in the P&L report by month to see the transaction report of the transactions making up the interest expense, QB used to show a nice compact listing of the transactions in the Classic view, perfect for my needs. Now it opens up a list of transactions for the entire year to date in a wide Modern expanded view that is hard to look at. Clicking on an item in say May should not bring up a list of transactions from the beginning of the year. Modern view definitely does not improve things for me and was an unwanted change.

Fortunately, there is still a "Switch to Classic View" button which gets me back to the view I want but it takes an extra step every time I click on an item to view the detail.

I'll give feedback as suggested but I'm not sure why a disable modern view was not built in originally.