Tried the ROM, running mostly smooth so far but the navigation bar is really broken.
In the new Android 10 gestures, Back works fine but swiping up to go home or swiping and holding to open recents does literally nothing.
The 2-button Pie-style gestures don't work at all (it still shows the 3 button layout instead of back and the pill)
And like the last two replies said, recents doesn't work at all even on the 3 button layout.
EDIT: So I was able to fix it by installing a 3rd party launcher and QuickSwitch for Magisk, the Pixel Launcher included in OpenGApps is what's causing it.
1. Download and install the latest Lawnchair Q Alpha
from Telegram (Lawnchair 2 from Play Store, Hyperion, and other Quickstep launchers don't work on Q yet)
2. Install Magisk
3. Install the QuickSwitch module inside Magisk Manager and Reboot
4. Open QuickSwitch and select Lawnchair as your recents provider, reboot
Everything should be working now: recents on 3 button navigation, 2 button now works at all, and all gestures (but back which was already working) on the new 10-style gestures now work.