It's great that a serial plotter was added to version 2.0!
However, there is an issue that will cause problems for a lot of users: the plot window only displays 50 points, as compared to 500 points for the previous version. While the plotter program is a definite upgrade from the previous version, this seems to be a downgrade. I don't suppose there's a user-adjustable parameter somewhere for this?
Many of the programs I develop for a K-12 STEM audience rely on the serial plotter to show various physical measurements. With only 50 points displayed, the events stream off the screen 10 times faster, have less resolution, and are much more difficult to see.
I can patch the code to reduce the rate of Serial.prints but it will have to be done to all my old programs, and it's a kludge.