Do the TRAPPIST-1 planets have atmospheres?

In February of 2017, the scientific community rejoiced as NASA announced that a nearby star (TRAPPIST-1) had a system of no less than seven rocky planets. Since that time, astronomers have conducted all kinds of follow-up observations and studies in the hopes of learning more about these exoplanets. In particular, they have been attempting to learn if any of the planets located in the stars’ habitable zones (HZ) could actually be habitable.

Source:
https://phys.org/news/2020-07-trappist-planets-atmospheres.html