In Database Setup for MySQL, it mentions the following:

If you're using MySQL 5.7, turn off the 'derived merge' optimizer switch, as this can cause the dashboard to load slowly.

Since the derived_merge parameter of the optimizer switch system variable exists in the latest version of MySQL (v8), could this be updated to read as:

If you're using MySQL 5.7 or higher, turn off the 'derived merge' optimizer switch, as this can cause the dashboard to load slowly.