Comment by armada651

This isn't exclusive to video games. Much of the improvements to world records in sports are due to improvements in gear, yet we don't consider those records to have been unfairly achieved.

Some games do impose limits though, for example Overwatch doesn't allow you to use an aspect ratio larger than 16:9 and selecting a wider aspect ratio actually cuts down on your vertical field-of-view rather than granting you more horizontal field-of-view. This lessens the potential advantage of ultra-wide monitors.