The exoplanet, TOI-715 b, is about one and a half times the width of Earth.
Unfortunately super earths aren’t viable for us. They would both have crushing gravity and that gravity would make rockets leaving the planet impossible. Fuel to weight ratio would ensure no one could ever leave.
Don’t need to leave that planet in order to colonize it.
If we have technology to traverse 100+ ly, we likely have the technology to escae its gravity
So, how much more weight would one be subject to?
Assuming the same density, about three times as much gravity.
Gravity scales linearly with volume which scales with the cube of the width, (3/2)³ is about 3,4.
So we go there to train and come back as superheroes?
More like all our joints decay rapidly under the added stress, and we end up with crippling arthritis and an early grave. But maybe some generation of our descendants would be Bulrathi or Klingons or something, after some adaptation!
