@xogium Don't forget that circa 2010-2011, Oracle acquired Sun Microsystems and disbanded the accessibility team. They were responsible for GNOME's accessibility infrastructure. We went from about 10 full-time people working on accessibility to none.
Emmanuele Bassi's talk on the history of accessibility in GNOME: https://www.youtube.com/watch?v=eNh0Xg8abj0
My talk on the effort to bring the accessibility stack to modern standards: https://viruta.org/paying-technical-debt-transcript.html