@hellomiakoda most distros come with the accessibility software built-in, but it's not just the software. Is your app QT? GTK2,3,4? some new UI toolkit? is your distro using Wayland? Well done, there goes a good chunk of your accessibility. Oops, did pipewire just crash? Did you try and login as root on a text console? oops, your audio server is running as your user, not root, and modern Linux audio servers, for the sake of security, don't run across user boundaries. no speech for you! Does your app even have labeled buttons? Hell, the Ubuntu Mate installer, if you tab around it, you hear something like:
Button.
Button.
Panel.
Button
Layered pane.
Text. New York selected.
Button.
Button