Hollywood released several hundred movies last year. In theaters.
They simply didn't advertise them as much as they did the blockbusters, because advertising is very expensive and most films are capable of making back their production budgets but not the advertising budgets (which can equal or even exceed the actual cost of making the movie, see e.g., Solo which was considered a loss because of the amount Disney spent advertising the film).
They simply didn't advertise them as much as they did the blockbusters, because advertising is very expensive and most films are capable of making back their production budgets but not the advertising budgets (which can equal or even exceed the actual cost of making the movie, see e.g., Solo which was considered a loss because of the amount Disney spent advertising the film).