Unrelated to Japan, but what's the reputation of train simming video games among train nerds? Are train sims deemed realistic? Also the trains would be crowded

Unrelated to Japan, but what's the reputation of train simming video games among train nerds? Are train sims deemed realistic? Also the trains would be crowded right now. Maybe an interesting experience, since it's a once in a lifetime chance to see how their scheduling handles massive, unexpected crowds.