As noted above, the star is not in ED. There are some 400 bllion stars in the real-world galaxy; only about 100,000 of them have been added to ED. This star was not added because, prior to being examined by a space telescope that was not even launched when the game began, there was absolutely nothing of interest known about this particular star - it was just one of hundreds of dim, uninteresting M-class stars within 200 LY of Earth. And no, they can't easily add new ones to the game, without destroying the galaxy and replacing it with one that looks almost, but not quite, the same. To add a "new star", they have to sacrifice a procedurally-generated star that already exists in-game, like they did when they added TRAPPIST-1.
There are two known planets in the TOI-1266 system; planet b (the inner one) is 15 Earth-masses, so likely to be more "mini-Hot-Jupiter" rather than "super-Earth". Planet c (the outer one) is 6 Earth-masses and 1.67 Earth radius.
It should also perhaps be pointed out that "Earth-like" has a different definition when real-world exoplanetologists use it. For them, an "Earth-like planet" is a solid planet in close solar orbit around its star. Under this definition, Mercury, Venus and Mars would all qualify as "Earth-like planets". But in ED, "Earth-like" means "has between 0.4 and 2.0 Earth-gravities with an atmosphere a human could breathe without needing a space suit". This "super Earth-like" world is too hot to be Earth-like and would most-likely be a "super-Venus" rather than a "super-Earth". And by my reckoning, the surface gravity of planet c would be 2.29 Earth-gravities, so would fall outside ED's definition of "Earth-like", even if it had a breathable atmosphere.
