USB-C CC pins are pulled to the GND by AW3512 (VCONN switches) when VCONN is off

[Subsentient]

It means that you'll have to use software to manually switch from normal charging/device mode and USB OTG mode (e.g. plugging a USB mouse into your phone).
The phone won't be able to detect whether it's plugged into a PC/charger or whether you have some USB device plugged into it that you expect to work.

The fix is to desolder a couple tiny switches that aren't particularly important. I've completed that on my phone, I can confirm it fixes the issue.
As to whether to cancel your order, I suppose that depends on how critical automatically-switching USB OTG support is, and/or your comfortability with desoldering a couple little specks from the motherboard.

Did removing the switches cause any problems? Or does all work as it should?

I think one guy had issues with simultaneous HDMI and USB or something, but it's a very uncommon use case. You can, of course, manually switch modes if you prefer not to remove the switches. Myself, I haven't had any issues.