This! Debian with Gnome or others is the answer. Take an afternoon to make it yours, then forget it. You can use backported kernels on Debian, to support newer hardware. Try this or upgrade to Debian 13 right now by changing the sourcefile to trixie instead of bookworm. Note : if you use Gnome, let gnome-software handle the updates for you (there’s an equivalent for kde). If you use others, configure unattented-upgrades for automatic updates.

As a 6700XT owner, I use 4k@60Hz (my screens can’t do better anyway). Does that mean I would need to use DisplayPort for better output in the future?

For reference, I have a 6700XT on a 4k videoprojector, and it’s fluid for 4k video and games (but it’s a gaming card). The drivers are excellent and the card is stable. Thus said, I read some web videos through mpv, which is more optimized. On Youtube 4k, it works as well. I’ve tried 8k downsized and it was bit laggy, so I don’t think a 6400 is enough for 8k video. I also had to buy a HDMI cable with more throughput! Videos aside, I think it’s okay for the display only (texts and images), but wait for another reviewer because the 6400 is less powerful, so I can’t confirm. However, if it works on Windows, it will work on Linux.

gammastep

I’m glad that it has fixed your problem. Enjoy :)

Use virt-manager (with KVM). Learn how to install guest tools, then enjoy the performance!

Activate it as shown in the comments!

Have you checked the flags in wpa_supplicant? Some routers have non-default encryption schemes.

From my notes, use these USE flags as a test: net-wireless/wpa_supplicant wps wep ap fasteap eap-sim tkip uncommon-eap-types

I’m pretty sure this is your problem :)

Switch to Debian and you’ll be fine :)

This can happen with people that refuse to learn!

I use encryption on laptops, because they can be stolen in the train, bus, etc. On work desktop, I do so as well, because there are many people around. However, on everything that stay at home, I prefer not to use it to simplifiy things and get more performance.