I have installed the latest chromium-based Microsoft Edge browser, it is now available for W7/8.1, I believe it was exclusive to W10 before but I could be wrong.
After a few hours browsing, text seems very legible (maybe they are proprietary M$ fonts), and there seems to be less strain happening than Chrome/Firefox right now. I would recommend giving it a try if you're using Windows.
Edit: Looks like it is available for MacOS and also a soon to be announced Linux version. It is supported on Windows 7 until January 2021.