Conditions might get worse though until I’m either forced to act or it’s too late.

What active ingredients do they contain?

Edinburgh is pronounced how?

Do you think it‘s all unpaid volunteer work?

I bought a cheap arm based Linux laptop a couple of years ago. The official distribution with full hardware support never received any updates. ARMbian didn’t fully support the hardware more than a year later. E.g. no sound output.

Looks like it’s still rough around the edges.

https://wiki.archlinux.org/title/HDR_monitor_support

KDE Plasma 6.0 introduced experimental HDR support for Wayland session.

DRM clients can directly pass HDR metadata, but this is not available from regular userspace clients, only specialized software can use it.

Web browsers: No web browsers support HDR on Linux at this time.

Valve’s Steam compositor gamescope offers experimental HDR support.

How is support for HDR colors nowadays?