I'm running on win 10 with a 4k (3840 x 2160) 150% scaling and a 2k (2560 x 1440) 100% scaling side by side.
If I drag the program from one screen to the other the icons become bigger on the 2k screen but the text size does not change and it's still tiny on both screens.
Increasing the scaling changes the text size but not icons, but it then affects all other programs I'm using which work perfectly on 4k screen.