Check if you have qt5-imageformats package installed. It is an optional dependency for kio-extras package that is not installed by default on Arch distros.

I am pretty sure webp works with the wallpaper picker on plasma5 from my experience.

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You may want to play around with alsamixer. Some audio cards have really low volume on some of the mixers like PCM out of the box on Linux.

For a lot of people, louder audio subjectively means better sounding audio. (Loudness wars for audio mastering for example.)

Try installing kwallet-pam. It will remember your secrets through PAM when you log in. Arch does not have kwallet-pam installed by default unless you install via plasma-meta package.

If you use Chromium, you will not be asked for creating a password store as well so that is another bonus for kwallet-pam.

Hyprland dev’s response to blog post: https://blog.vaxry.net/articles/2023-hyprlandsCommunity

Arch and RHEL enable zswap by default. Regular x86_64 Ubuntu and Debian do not have zswap nor zram enabled by default.

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FSF and OSI have slightly different definitions for software. FSF believes in free and open source software (copyleft i.e. GPL) whereas OSI believes in permissive, open source licenses (i.e. MIT/BSD).

In the 1990s, they had disagreements against each other because FSF and Stallman believe in FLOSS/FOSS and free software advocacy politics. OSI was more concerned with open source workflows and not with free software advocacy politics, which was initially more popular with businesses.