An article that compares running stock Windows 10 against Linux on a $200 Walmart laptop:

https://www.phoronix.com/scan.php?page=article&item=ryzen3-windows-linux&num=1

Notice there are 9 pages of comparison tests to be seen by clicking on the rather small green lettering links.

Sample quote

On 60% of the tests Linux ran faster than Windows 10

Typically Linux was 15% faster.

Linux’s file system was a major factor in speed.

End quote