The font quality is degraded and thicker

1.Observed Results: Since I have updated the 1.16.200 version, I found that the simplified Chinese font quality is degraded. It is excessive jagged and it became very thick.
Picture:

video:
Minecraft 2020-12-12 12-04-18.mp4

2.Expected Results: Simplified Chinese font has very thin lines
Picture:

video:
Minecraft 2020-12-12 12-19-09.mp4

3.Postscript:
(1): It is recommended to compare the pictures carefully after zooming in,such as every stroke of “世界，好友，服务器" at the top of the screen )
(2): The most important prompt：This error may only occur on On devices below 1080p
My computer model is ThinkPad x1carbon 2014
My computer processor is Intel core i5-4300U CPU@1.90HZ 2.49GHz
My computer resolution is 1600x900