wireless – Ubuntu 18.04.5 does not detect internal QCA6174 wifi hardware

I’m using an Acer laptop with internal WiFi adapter – but my Ubuntu installation does not detect it. That’s what I can see at the moment:

> iwconfig
lo        no wireless extensions.
enp1s0f1  no wireless extensions.

>rfkill list all
0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no
1: acer-wireless: Wireless LAN
    Soft blocked: no
    Hard blocked: no
2: acer-bluetooth: Bluetooth
    Soft blocked: no
    Hard blocked: no

>lspci -vvnn | grep Network
02:00.0 Network controller (0280): Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter (168c:003e) (rev 32)
    Subsystem: Lite-On Communications Inc QCA6174 802.11ac Wireless Network Adapter (11ad:0807)

Any idea what the reaosn could be/where to look for some additional information to get it running?

Thanks!