Glitching graphics only on laptop eDP w/o disabling acceleration in Xorg config on Fedora 35, NVIDIA driver 510.60.02

The usual details:

OS: Fedora 35
Kernel: 5.16.19-200.fc35.x86_64
Laptop: Lenovo ThinkPad P17 Gen 2i, model 20YU002QUS
Laptop BIOS: N37ET37W (1.18 )
NVIDIA Driver: 510.60.02, via rpmfusion repo
Integrated graphics: disabled in BIOS
Discrete graphics: NVIDIA GPU NVIDIA RTX A3000 Laptop GPU (GA104GL-A)
XWayland disabled via /etc/gdm/custom.comf WaylandEnable=false

Config options that may be relevant:

ServerLayout is configured for two (separate) screens, Xinerama is not enabled, twinview is not enabled. Each screen has its own screen/monitor/device section. Laptop internal eDP is HiDPI native resolution 3840x2160, but configured to use 1920x1080 via nvidia-auto-select{ViewPortIn=1920x1080} MetaMode.

I have xterm text that glitches seemingly in time with the cursor blinking in Electron/chromium based apps (like Slack, Zoom, Discord) that can’t be recorded by desktop-recording software, and goes away if I turn acceleration off via config:

Section "Screen"
    Option "Accel" "off"
EndSection

Oddly enough, xrandr -q on the laptop’s internal display has … well, self-conflicting info:

Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
HDMI-0 disconnected (normal left inverted right x axis y axis)
DP-4 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 382mm x 215mm
   3840x2160     60.00*+  59.97  
   1920x1080     60.01    59.97  
DP-6 disconnected (normal left inverted right x axis y axis)

DP-4 is the eDP, it’s actually at 1920x1080 resolution, but the “*+” next to 3840x2160 shouldn’t be, the display isn’t running at 3840x2160, it’s running at 1920x1080.