Megous describes the operation of the USB-C bridge chip and its interaction with different types of USB chargers:
https://xnux.eu/devices/feature/anx7688.html
The short version is that 'dumb' chargers should work reliably, and that Battery Charging 1.2 spec chargers (5V, 2.1A) are a good bet. PD chargers are more hit-and-miss, and fall back to 0.5A under various circumstances. PD should get quite reliable once the various OS versions include the necessary firmware and driver parts, but we aren't there yet.
https://xnux.eu/devices/feature/anx7688.html
The short version is that 'dumb' chargers should work reliably, and that Battery Charging 1.2 spec chargers (5V, 2.1A) are a good bet. PD chargers are more hit-and-miss, and fall back to 0.5A under various circumstances. PD should get quite reliable once the various OS versions include the necessary firmware and driver parts, but we aren't there yet.