Icon inconsistent

[userH0TEOjbpSR]

Hello everyone. 

I decided to update my general look and theme for this fresh One UI7. 

I'm having a hard time getting uniformed icons. 

I tried themes, icon packs, or simply using defaults. Only about 1/3 of my icons match, and the rest are store defaults or imbedded circles.

Even the stock calculator app is not a themed match, while the phone and camera are. 

I've tried downloading many Samsung and third party icon packs. 

What am I doing wrong?

Thanks

S24U