Correction, it's not the only e-sport that translates well. Much smaller scale but FPV Drone racing is heavily practiced on simulators as well and skillsets translate to one another pretty well.
Any sport involving any sort of physical contact is really difficult. The sports without are pretty easy to do while following CDC recommendations: poker, chess, golf, bowling, racing, biking.
Sports like track & field are somewhat in the middle but they're just timed. It would be feasible to just have people do these alone in standardized conditions with a single moderator.
Don't you think to be considered a "sport" there needs to be an element of physical aptitude? Poker and chess are both games of skill, but I wouldn't call them sports.
In a this ESPN article on Fabiano Caruana, they noted "In October 2018, Polar, a U.S.-based company that tracks heart rates, monitored chess players during a tournament and found that 21-year-old Russian grandmaster Mikhail Antipov had burned 560 calories in two hours of sitting and playing chess -- or roughly what Roger Federer would burn in an hour of singles tennis."
It's about being virtually confined to a box that has simplish interactions with the environment. Simulations that fit into this category are race car, tank, air plane, ship (least popular category probably), submarine.
