WiFi disconnects in doze mode
Customer service explained me that my Project Fi SIM card is expected to kick me off from free Wi-Fi whenever it decides that the LTE connection is stronger. He said the customer should every single time manually put himself to airplane mode as a remedy. Complete bullshit esp. given that fact that it loses Wi-Fi in sleep even if data is off so waking the phone would not give me any connection, until I would force a reconnect by opening settings.

Finally, a device update from March 5 fixed it, so now my Wi-Fi stays on.