Command/Control keys are split on PC keyboard with Mac

No matter how many combinations I try in Modifier Keys, unfortunately the control/command keys split responsibilities.

For example:

Control x, c, v all work fine, but Control z, t, r don't work – instead i have to use Command z, t, r.

Is there a way to have one of these buttons for all shortcuts? I tried changing Modifier Keys to use Command for all shortcuts but my Mac would not respect it. Also tried Karabiner. FYI I'm using a Razer keyboard.

TIA

edit: updated w/ image and scenarios –

the above settings allows the following:

1) in TextEdit on my mac, the following commands work:
ctrl x, c, v all works. but ctrl a, z do not work. in order to do ctrl a, z , i have to do windows key + a, z

2) in chrome, i have to do windows t, r in order to open new tab or reload. in chrome url area – i can only do windows + z, x, c, v, a (ctrl doesnt work with any of these despite working partially in TextEdit!!)

3) in gmail – windows a, z works. and ctrl x, c, v works. !

I tried multiple combinations in modifier keys section for keyboard but no matter what combination i try, the commands always split b/w ctrl and windows key. i also tried Karabiner using every variation under the sun but to no avail.

Is a computer reset my only option? Brand new mac been using for 1 month. :/