Question to everyone who is experiencing this: are you perchance using KDE Connect, and your desktop is paired with another device over a slow connection (like you connect your desktop to your phone’s Bluetooth hotspot because that happens to be the only way for the desktop and the phone to be on the same network)? Trying to establish a correlation here.
Not even installed here.
I do use KDE connect, but it’s over local wifi. Nothing slow about it.
I haven’t had the video freeze since the newest 570.144-5 driver landed. Yet. But have had Plasma hang a few times after sleep, requiring a reboot before KDE behaves again. But that seems like a problem that happens to everyone, lol!