Just checked this out with the terminal command
ITS NOT A BIG DEAL AT ALL!
If you press Command + V or press Paste in the context menu, YOU WILL NOT SEE ANY POPUP AT ALL!
It's only the first time an app requests to press Command + V for you.
In summary, its just this WHEN AN APP PASTES FOR YOU, NOT WHEN YOU PRESS COMMAND V:
View attachment 2510270
And I dont remember seeing this iOS popup since like 2 years ago, this will also show if an app tries pasting for you:
View attachment 2510271
Unfortunately, that's not really accurate. It's glitchy on iOS and some applications it just never stops asking