Actually your in your image the text is blurry as well.
Open Edge and look at it side by side.
This is not just me and my setup, it's across all computers in the office (Dell, HP, Microsoft, etc.) and around 87% of the people in our organization use Chrome. I have not checked iMac or MacBook yet.
The text is faded not blurred. When I have rendering problems I always look at CSS. Use Edge and Chrome development tools. I did this to look for problems.
As you can see Edge explicitely sets alpha (transparency) value to 100% (no fading) consistent to how it is set in PowerApps (color property RGBA(47, 41, 43, 1)). Chrome doesn't. I don't know the default in Chrome but it looks like it is less than 100%. This is a bug in PowerApps