Earth-size potentially habitable planet.
Not likely. A tidally-locked planet is probably not very habitable. Would be blazing hot on one side and frigid on the other. Also, if I remember correctly those type of small stars tend to have massive fucking flares that blow atmospheres off planets and into space.
There is a small possibility that there might be a habitable area in the “twilight zone” on or near the terminator, but most likely not.
We just need to get out there and take a look.