That little key labeled is the culprit. It acts as a "Shift" key for your top row, forcing you to hold it down just to get the old-school function keys to work.
If you spend your day coding in Visual Studio, battling in an MMO, or mastering Excel shortcuts, pressing two keys for one action gets old fast. how to use f keys without fn
We’ve all been there. You’re trying to refresh a page (F5), rename a file (F2), or jump into the BIOS (F10), but instead of the command working, you accidentally turn up your screen brightness or mute your speakers. That little key labeled is the culprit
Now go hit F2 and rename that file like the productivity god you are. battling in an MMO