Communting by train does depend on your personal situation.
I’ve noticed that there has been much less congestion on the 5 in recent months, probably due to new HOV lane and higher gas prices (fewer drivers). Driving the 5 is more pleasant, albeit more expensive that earlier this year.
The option to commute by train is still a good hedge for crazy gas prices we saw over the summer. All it takes is some geopolitical event, e.g, Israel going after Iran nuclear facilities, and we’ll see a big spike in gas prices.