Update 24.11.2020:
Now it is not longer needed to comment out anything as mentioned in the post above.
Debugging and console output now work together as well.
After Run → Start Debugging it stops on the command init(); Then click the Continue button on the command bar, then the Restart button, then again the Continue button and from now debugging works without problems.
To use the latest framework-code this line should be added to platformio.ini
platform_packages = framework-arduino-samd-seeed@GitHub - Seeed-Studio/ArduinoCore-samd