I’m using KDE and when I download a flatpak it automatically creates a .desktop file. I think gnome does this too if I’m not mistaken. I do have to restart or relogin for it to put the file there but that’s not that bad IMO.

Brave browser. It has an ad blocker built in.

Well this isn’t a DE thing but I would like good ray tracing and the new frame gen support for my AMD GPU.

Librewolf is able to do that by turning sync on in the librewolf settings.

I am reading the wiki, but it is mostly discussing PulseAudio and not providing much information about PipeWire. I am unsure whether they share similar file locations or configuration processes, and I do not want to arbitrarily paste PulseAudio commands without knowing their potential effects.

My headphones are not Bluetooth, and I have already disabled the EQ. Disabling the EQ has not fixed my problem; it has only made the sound slightly more bearable.

According to the Arch Linux wiki, power-saving mode for my audio card is disabled by default. I have not enabled it yet, therefore it is not currently available as an option.

How can I check that? Is there a program that I can use or a command?

For some reason i still have bad mouse lag on x11 but it could be nvidia or my driver for all i know.

I would say Debian, its stable and customizable.