I encountered a similar problem last night when I updated my Chromium-based Browser (Vivaldi). Text, especially certain colors or text against certain backgrounds, looked horrible. It looked jagged, unnatural or sometimes blurry. Luckily, I’ve rectified the issue:
- Type chrome://flags in the url bar and hit enter.
- Enable DirectWrite if you still have it disabled.
- Scroll down to LCD text antialiasing and select Enabled.
- Relaunch the browser.
Text should now appear crisp and smooth.