Very high CPU usage with all extensions disabled unless "Disable AI features" is enabled

Type: Bug

When opening a project with "Disable AI Features" option disabled (AI features are enabled), the VSCode constantly maxes out one entire CPU core/thread even though nothing is happening at all. No files open, nothing displayed, all extensions disabled.

Enabling "Disable AI Features" immediately drops the CPU usage to appropriate levels, but unchecking it to re-enable AI features immediately brings the excessive CPU usage back.

VS Code version: Code 1.138.0 (7debcd0e2acdea1c52de81bf9ee1620444407dda, 2026-09-15T07:24:32Z)
OS version: Windows_NT x64 10.0.26200
Modes:

System Info

|Item|Value|
|---|---|
|CPUs|AMD Ryzen 9 3900X 12-Core Processor (24 x 3800)|
|GPU Status|2d_canvas: enabled
GPU0: VENDOR= 0x10de, DEVICE=0x2705 [NVIDIA GeForce RTX 4070 Ti SUPER], DRIVER_VENDOR=NVIDIA, DRIVER_VERSION=32.0.15.9649 *ACTIVE*
GPU1: VENDOR= 0x1414, DEVICE=0x008c [Microsoft Basic Render Driver], DRIVER_VERSION=10.0.26100.9278
Machine model name:
Machine model version:
direct_rendering_display_compositor: disabled_off_ok
gpu_compositing: enabled
multiple_raster_threads: enabled_on
opengl: enabled_on
rasterization: enabled
raw_draw: disabled_off_ok
skia_graphite: disabled_off
trees_in_viz: disabled_off
video_decode: enabled
video_encode: enabled
webgl: enabled
webgpu: enabled
webnn: disabled_off|
|Load (avg)|undefined|
|Memory (System)|63.91GB (51.58GB free)|
|Process Argv|D:\\Projects\\Games\\IncarnusWarfare\\IncarnusWarfare.code-workspace --crash-reporter-id 7a6c2507-c44b-4e8f-8d06-918d5883f16a|
|Screen Reader|no|
|VM|0%|
Extensions: none