Happy to see an integrated rich serial data plotter. One of my tricks used to be to do a: Serial.print(inputVal * 100 * "-") to get a basic visual 'chart' stream going to test sensor inputs and the like.
For an absolute beginner PlatformIO is off the beaten path so I'd say skip it to start, but if you have any familiarity with traditional IDEs, PlatformIO is probably 90% as beginner friendly while being more of a traditional development environment.
2.0 being based on Monaco will help bridge the gap, but it's clear that they're still going for a very pared down experience in the Arduino IDE. Other comments comparing it to Notepad are about right... it's very easy to get into Notepad but can be limiting once you get past the initial hump
A workaround is to not follow their suggestion to install from the VS Code plugin and install the command line tools instead.
Also, serial monitoring and plotting isn't very good. I ended up writing my own: https://serialviz.skybrian.com/
That said, package management is more sane. Having a platformio.ini file that you can check in helps with reproducibility.
Otherwise, you can do anything Arduino 2 can do with VSCode+PIO, it'll just take some setup.