Is the sony fe 135mm f 1 8 gm good in low light?

Here is what the site says about that.

From Sony FE 135mm f/1.8 GM: Sony FE 135mm f/1.8 GM: A prime lens by Sony for Full frame cameras, 135mm f/1.8. Specs - Maker: Sony - Focal length: 135mm (prime) - Maximum aperture: f/1.8 - Made for: Full frame sensors - Mounts: Sony E - Stabilised: no - Autofocus: yes What it frames like - On full frame (Sony E): as marked, 135mm. - On APS-C (Sony E): like 202mm on full frame; f/1.8 gives about the depth of field ...

From Sony FE 100mm f/2.8 STF GM OSS: Sony FE 100mm f/2.8 STF GM OSS: A prime lens by Sony for Full frame cameras, 100mm f/2.8. Its apodization filter makes very smooth out-of-focus backgrounds, at the cost of light (T5.6).

Quoted from this site's pages.