Yes, hydrogen sulfide is poisonous and can kill quickly. Many oil field workers keep H2S monitors on them to alert them to high levels of the gas, which has a strong smell similar to rotten eggs.
Today, Fujifilm announced an upcoming firmware update for the X-H2, X-H2S, and GFX 100 II that's meant to improve the cameras ...
Fujifilm has issued firmware updates for the following cameras: X-T5, X100VI, X-H2, X-H2S, X-T50, X-M5, GFX100S and GFX100, ...