Font rendering problem on Chromium

PROBLEM:
Font rendering breaks on Chromium browser after several hours of working.
"Anti-aliasing solution" on "Tweaks" tool doesn't help.

Attachment 287928

CONDITIONS:
- System: Ubuntu 20.04.2 LTS
- Machine: Dell Optiplex 990
- Processor: Intel Core i5-2400 CPU @ 3.10GHz × 4
- GPU: NVIDIA Corporation: GK208B [GeForce GT 710]

Using NVIDIA driver metapackage from nvidia-driver-460 (proprietary, tested)

- GNOME: 3.36.8
- OS type: 64-bit
- Chromium: Version 88.0.4324.150 (Official Build) snap (64-bit)
- GNOME Tweaks: 3.34.0
- GTK: 3.24.20